{"id":6350,"date":"2023-11-01T05:33:50","date_gmt":"2023-11-01T05:33:50","guid":{"rendered":"https:\/\/kawasan.123websitedev.com\/product\/chuong-cua-khong-day-db668b\/"},"modified":"2026-09-29T11:09:05","modified_gmt":"2026-09-29T04:09:05","slug":"chuong-cua-khong-day-db668b","status":"publish","type":"product","link":"https:\/\/kawasan.vn\/en\/product\/chuong-cua-khong-day-db668b\/","title":{"rendered":"DB668B WIRELESS DOORBELL"},"content":{"rendered":"<div class=\"tab-content\">\n<h2><span class=\"ez-toc-section\" id=\"CHUONG_CUA_KHONG_DAY_LA_GI\"><\/span>WHAT IS A WIRELESS DOORBELL?<span class=\"ez-toc-section-end\"><\/span><\/h2><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" >N\u1ed9i Dung B&agrave;i Vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/kawasan.vn\/en\/product\/chuong-cua-khong-day-db668b\/#CHUONG_CUA_KHONG_DAY_LA_GI\" title=\"WHAT IS A WIRELESS DOORBELL?\">WHAT IS A WIRELESS DOORBELL?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/kawasan.vn\/en\/product\/chuong-cua-khong-day-db668b\/#DIEM_NOI_BAT_CUA_CHUONG_BAM_CUA_KHONG_DAY\" title=\"OUTSTANDING FEATURES OF THE WIRELESS DOORBELL\">OUTSTANDING FEATURES OF THE WIRELESS DOORBELL<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/kawasan.vn\/en\/product\/chuong-cua-khong-day-db668b\/#UNG_DUNG_CUA_CHUONG_CUA_KHONG_DAY_CHONG_NUOC_TRONG_DOI_SONG\" title=\"APPLICATIONS OF THE WATER-RESISTANT WIRELESS DOORBELL IN DAILY LIFE\">APPLICATIONS OF THE WATER-RESISTANT WIRELESS DOORBELL IN DAILY LIFE<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/kawasan.vn\/en\/product\/chuong-cua-khong-day-db668b\/#LOI_ICH_CUA_VIEC_DUNG_CHUONG_DIEN_KHONG_DAY\" title=\"BENEFITS OF USING A WIRELESS ELECTRIC DOORBELL\">BENEFITS OF USING A WIRELESS ELECTRIC DOORBELL<\/a><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><ul class='ez-toc-list-level-5' ><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/kawasan.vn\/en\/product\/chuong-cua-khong-day-db668b\/#Vi_du\" title=\"For example:\">For example:<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/kawasan.vn\/en\/product\/chuong-cua-khong-day-db668b\/#CAC_VAN_DE_THUONG_GAP_KHI_MUA_CHUONG_KHONG_DAY_KEM_CHAT_LUONG\" title=\"COMMON PROBLEMS WHEN BUYING LOW-QUALITY WIRELESS DOORBELLS\">COMMON PROBLEMS WHEN BUYING LOW-QUALITY WIRELESS DOORBELLS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/kawasan.vn\/en\/product\/chuong-cua-khong-day-db668b\/#VI_SAO_NEN_MUA_CHUONG_CUA_KHONG_DAY_KAWASAN\" title=\"WHY SHOULD YOU CHOOSE A KAWASAN WIRELESS DOORBELL?\">WHY SHOULD YOU CHOOSE A KAWASAN WIRELESS DOORBELL?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/kawasan.vn\/en\/product\/chuong-cua-khong-day-db668b\/#TAI_SAO_NEN_CHON_KAWASAN\" title=\"WHY CHOOSE KAWASAN?\">WHY CHOOSE KAWASAN?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/kawasan.vn\/en\/product\/chuong-cua-khong-day-db668b\/#CAM_KET_TU_KAWASAKAWASAN\" title=\"KAWASAN COMMITMENT\">KAWASAN COMMITMENT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/kawasan.vn\/en\/product\/chuong-cua-khong-day-db668b\/#Mua_chinh_hang_tai\" title=\"Buy genuine products at:\">Buy genuine products at:<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<p>Chu\u00f4ng c\u1eeda kh\u00f4ng d\u00e2y\u00a0l\u00e0 thi\u1ebft b\u1ecb b\u00e1o hi\u1ec7u c\u00f3 kh\u00e1ch ho\u1eb7c c\u00f3 ng\u01b0\u1eddi \u1edf ngo\u00e0i c\u1ea7n v\u00e0o nh\u00e0. Ng\u00e0y nay nh\u00e0 \u1edf \u0111\u01b0\u1ee3c x\u00e2y t\u1ea7ng nhi\u1ec1u v\u00e0 k\u00edn n\u00ean kh\u00f3 c\u00f3 th\u1ec3 k\u00eau b\u1eb1ng mi\u1ec7ng ho\u1eb7c d\u00f9ng chu\u00f4ng c\u1eeda c\u00f3 d\u00e2y. L\u00fac n\u00e0y, s\u1ebd b\u1ecb h\u1ea1n ch\u1ebf n\u1ebfu ng\u01b0\u1eddi trong nh\u00e0 \u1edf g\u1ea7n c\u1ed5ng th\u00ec c\u00f3 th\u1ec3 nghe nh\u01b0ng n\u1ebfu \u1edf t\u1ea7ng cao th\u00ec kh\u00f3 nghe \u0111\u01b0\u1ee3c.<\/p>\n<p>V\u00ec th\u1ebf\u2026.<\/p>\n<p><a href=\"https:\/\/kawasan.com.vn\/san-pham.html\/chuong-cua-chuong-bao-khach.html\/chuong-cua-khong-day.html\" target=\"_blank\" rel=\"noopener noreferrer\">The B8A Doorbell<\/a>\u00a0Wireless doorbells have become increasingly popular because they eliminate the need for complicated wiring. Their compact design makes them easy to install, relocate, and use in a wide range of locations.<\/p>\n<div id=\"attachment_6934\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16712\" aria-describedby=\"caption-attachment-16712\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16712 size-full\" title=\"DB668B Wireless Doorbell\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2023\/11\/chuong-cua-khong-day-db668b.png\" alt=\"Chu\u00f4ng b\u1ea5m c\u1eeda kh\u00f4ng d\u00e2y DB668B\" width=\"600\" height=\"600\" srcset=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2023\/11\/chuong-cua-khong-day-db668b.png 600w, https:\/\/kawasan.vn\/wp-content\/uploads\/2023\/11\/chuong-cua-khong-day-db668b-400x400.png 400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-16712\" class=\"wp-caption-text\">DB668B Wireless Doorbell<\/figcaption><\/figure>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"DIEM_NOI_BAT_CUA_CHUONG_BAM_CUA_KHONG_DAY\"><\/span>OUTSTANDING FEATURES OF THE WIRELESS DOORBELL<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li aria-level=\"1\">The wireless doorbell operates by transmitting signals through radio waves without requiring signal wires. The operating range is approximately 20\u201370 m. The 433MHz RF frequency can transmit through walls, allowing the doorbell to operate effectively.<\/li>\n<li aria-level=\"1\">The chime volume can be adjusted according to household needs. There are 3 selectable volume levels: High \/ Medium \/ Low. The KAWASAN wireless doorbell also provides up to 32 preset chime melodies, allowing users to select and change the ringtone according to their preferences.<\/li>\n<\/ul>\n<div id=\"attachment_6941\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16709\" aria-describedby=\"caption-attachment-16709\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16709 size-full\" title=\"Up to 32 chime melodies and 4 adjustable volume levels.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/1-20.png\" alt=\"C\u00f3 \u0111\u1ebfn 32 ki\u1ec3u chu\u00f4ng v\u00e0 4\u00a0m\u1ee9c \u00e2m l\u01b0\u1ee3ng tu\u1ef3 ch\u1ec9nh\" width=\"1000\" height=\"500\" srcset=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/1-20.png 900w, https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/1-20-768x768.png 768w, https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/1-20-640x640.png 640w, https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/1-20-400x400.png 400w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-16709\" class=\"wp-caption-text\">Up to 32 chime melodies and 4 adjustable volume levels.<\/figcaption><\/figure>\n<\/div>\n<ul>\n<li aria-level=\"1\">The doorbell push button is powered by a small 12V 23A battery. Its low power consumption helps extend battery life. The chime receiver operates on a 110\u2013240VAC power supply, providing convenient and energy-efficient operation. The wireless doorbell also offers good water resistance with an IP44 protection rating.<\/li>\n<\/ul>\n<div id=\"attachment_6939\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16720\" aria-describedby=\"caption-attachment-16720\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16720\" title=\"Water-resistant design suitable for outdoor installation.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/2-27.png\" alt=\"Kh\u1ea3 n\u0103ng ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc c\u00f3 th\u1ec3 l\u1eafp ngo\u00e0i tr\u1eddi\" width=\"600\" height=\"337\" \/><figcaption id=\"caption-attachment-16720\" class=\"wp-caption-text\">Water-resistant design suitable for outdoor installation.<\/figcaption><\/figure>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"UNG_DUNG_CUA_CHUONG_CUA_KHONG_DAY_CHONG_NUOC_TRONG_DOI_SONG\"><\/span>APPLICATIONS OF THE WATER-RESISTANT WIRELESS DOORBELL IN DAILY LIFE<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"mceTemp\"><\/div>\n<div id=\"attachment_6944\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16721\" aria-describedby=\"caption-attachment-16721\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16721\" title=\"KAWASAN wireless doorbells are widely used in many different locations.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2024\/02\/chuong-cua-khong-day-DB668B205.png\" alt=\"Chu\u00f4ng kh\u00f4ng d\u00e2y Kawasan \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i \u1edf nhi\u1ec1u khu v\u1ef1c\" width=\"600\" height=\"546\" \/><figcaption id=\"caption-attachment-16721\" class=\"wp-caption-text\">KAWASAN wireless doorbells are widely used in many different locations.<\/figcaption><\/figure>\n<\/div>\n<ul>\n<li>Used as a doorbell<\/li>\n<\/ul>\n<div id=\"attachment_6945\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16714\" aria-describedby=\"caption-attachment-16714\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16714\" title=\"The battery-powered wireless doorbell is widely used in homes.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2023\/11\/chuong-khong-day-DB686B-7-1.jpg\" alt=\"Chu\u00f4ng c\u1eeda kh\u00f4ng d\u00e2y d\u00f9ng Pin \u0111\u01b0\u1ee3c \u01b0u chu\u1ed9ng d\u00f9ng t\u1ea1i nh\u00e0\" width=\"600\" height=\"284\" \/><figcaption id=\"caption-attachment-16714\" class=\"wp-caption-text\">The battery-powered wireless doorbell is widely used in homes.<\/figcaption><\/figure>\n<\/div>\n<ul>\n<li>Used as an emergency alarm call button<\/li>\n<li>Used as an assistance call system for elderly users<\/li>\n<\/ul>\n<div id=\"attachment_6942\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16713\" aria-describedby=\"caption-attachment-16713\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16713\" title=\"Helps patients quickly call nurses or medical staff for assistance.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2023\/11\/chuong-khong-day-DB686B-5-1.jpg\" alt=\"H\u1ed7 tr\u1ee3 c\u00e1c b\u1ec7nh nh\u00e2n nh\u1eadn \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 t\u1eeb y t\u00e1 b\u00e1c s\u0129 nhanh h\u01a1n\" width=\"600\" height=\"400\" \/><figcaption id=\"caption-attachment-16713\" class=\"wp-caption-text\">Helps patients quickly call nurses or medical staff for assistance.<\/figcaption><\/figure>\n<\/div>\n<ul>\n<li>Used as a visitor chime or service call system<\/li>\n<\/ul>\n<div id=\"attachment_5826\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16724\" aria-describedby=\"caption-attachment-16724\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16724\" title=\"The push button allows customers to quickly call service staff.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2026\/10\/3-12.png\" alt=\"N\u00fat nh\u1ea5n gi\u00fap kh\u00e1ch h\u00e0ng g\u1ecdi ph\u1ee5c v\u1ee5 nhanh h\u01a1n\" width=\"600\" height=\"431\" \/><figcaption id=\"caption-attachment-16724\" class=\"wp-caption-text\">The push button allows customers to quickly call service staff.<\/figcaption><\/figure>\n<\/div>\n<ul>\n<li>Used as an internal call chime in homes, offices, hotels, and similar facilities<\/li>\n<\/ul>\n<div id=\"attachment_6940\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16725\" aria-describedby=\"caption-attachment-16725\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16725\" title=\"Simply press the button to send an alert throughout the house.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2024\/02\/chuong-cua-khong-day-db668b7.png\" alt=\"Ch\u1ec9 c\u1ea7n nh\u1ea5n n\u00fat l\u00e0 c\u00f3 th\u1ec3 th\u00f4ng b\u00e1o cho to\u00e0n b\u1ed9 ng\u00f4i nh\u00e0\" width=\"600\" height=\"662\" \/><figcaption id=\"caption-attachment-16725\" class=\"wp-caption-text\">Simply press the button to send an alert throughout the house.<\/figcaption><\/figure>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"LOI_ICH_CUA_VIEC_DUNG_CHUONG_DIEN_KHONG_DAY\"><\/span>BENEFITS OF USING A WIRELESS ELECTRIC DOORBELL<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li aria-level=\"1\">Flexibility: The chime receiver can be easily relocated and installed in different areas of the house, such as living rooms, stairways, corridors, or different floors. The push button can be mounted on a door, wall, gate, or entrance.<\/li>\n<li aria-level=\"1\">Improved aesthetics: No signal wiring is required between the doorbell push button and the chime receiver, helping reduce installation work and maintain a cleaner appearance.<\/li>\n<li aria-level=\"1\">No renovation required for installation: Many house fa\u00e7ades are finished with granite or decorative stone, which is difficult to drill. Homeowners may also prefer not to drill because doing so could damage or crack the stone surface. If wiring is required only to install a single push button, a wireless push button is a more suitable option.<\/li>\n<li aria-level=\"1\">Convenient battery replacement: The wireless push button uses a replaceable battery that typically lasts around 6 months. The chime receiver can be plugged directly into a 220V power outlet.<\/li>\n<li aria-level=\"1\">Expandable system: In large or multi-story homes, a single chime receiver may not be audible everywhere. KAWASAN wireless doorbell push buttons and chime receivers can be expanded and paired with additional units as needed.<\/li>\n<\/ul>\n<div id=\"attachment_6943\" class=\"wp-caption aligncenter\">\n<figure id=\"attachment_16726\" aria-describedby=\"caption-attachment-16726\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16726 size-full\" title=\"One chime receiver can be installed on each floor and paired with a single push button.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2024\/02\/chuong-cua-khong-day-db668b8.png\" alt=\"C\u00f3 th\u1ec3 l\u1eafp m\u1ed7i t\u1ea7ng 1 chu\u00f4ng v\u00e0 t\u00edch h\u1ee3p v\u00e0o 1 n\u00fat nh\u1ea5n\" width=\"600\" height=\"600\" srcset=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2024\/02\/chuong-cua-khong-day-db668b8.png 600w, https:\/\/kawasan.vn\/wp-content\/uploads\/2024\/02\/chuong-cua-khong-day-db668b8-400x400.png 400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-16726\" class=\"wp-caption-text\">One chime receiver can be installed on each floor and paired with a single push button.<\/figcaption><\/figure>\n<\/div>\n<h5><span class=\"ez-toc-section\" id=\"Vi_du\"><\/span>For example:<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<p>Nh\u00e0 c\u00f3 2 c\u1eeda v\u00e0 3 t\u1ea7ng n\u1ebfu d\u00f9ng 1 chu\u00f4ng c\u1eeda th\u00f4ng th\u01b0\u1eddng. B\u1ea1n ph\u1ea3i d\u00f9ng 3 b\u1ed9 chu\u00f4ng g\u1eafn cho 3 t\u1ea7ng, n\u00fat nh\u1ea5n ph\u1ea3i g\u1eafn 3 c\u00e1i \u1edf c\u1ed5ng \u0111\u1ec3 g\u1ecdi t\u1eebng t\u1ea7ng. V\u1edbi chu\u00f4ng KAWASAN b\u1ea1n ch\u1ec9 c\u1ea7n 1 n\u00fat nh\u1ea5n v\u1edbi 3 \u0111\u1ea7u ph\u00e1t chu\u00f4ng c\u1eafm v\u00e0o \u1ed5 \u0111i\u1ec7n t\u1ea1i m\u1ed7i t\u1ea7ng. V\u1edbi n\u00fat nh\u1ea5n g\u1eafn t\u1ea1i c\u1eeda ho\u1eb7c c\u1ed5ng ti\u1ec7n l\u1ee3i.\u00a0Khi nh\u1ea5n 1 n\u00fat nh\u1ea5n th\u00ec 3 chu\u00f4ng \u0111\u1ec1u ph\u00e1t nh\u1ea1c.<\/p>\n<p>With a wired doorbell, this arrangement is more difficult because additional wiring is required, and once installed, the devices are fixed in position and are difficult to relocate.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"CAC_VAN_DE_THUONG_GAP_KHI_MUA_CHUONG_KHONG_DAY_KEM_CHAT_LUONG\"><\/span>COMMON PROBLEMS WHEN BUYING LOW-QUALITY WIRELESS DOORBELLS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li aria-level=\"1\">Short signal transmission range of only approximately 10\u201315m. When installed in multi-story buildings, pressing the push button may fail to activate the chime on higher floors.<\/li>\n<li aria-level=\"1\">Low-quality push buttons with poor water resistance may fail after a short period of outdoor use.<\/li>\n<li aria-level=\"1\">Limited or no expansion capability, requiring users to purchase additional complete doorbell sets for other areas of the house, especially in multi-story homes.<\/li>\n<li aria-level=\"1\">Low initial purchase price but poor durability of less than 2 years, resulting in higher replacement and repair costs over time.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"VI_SAO_NEN_MUA_CHUONG_CUA_KHONG_DAY_KAWASAN\"><\/span>WHY SHOULD YOU CHOOSE A KAWASAN WIRELESS DOORBELL?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li aria-level=\"1\">Kawasan is an established brand in the\u00a0<a href=\"https:\/\/kawasan.vn\/en\/product-category\/chuong-cua-chuong-bao-khach\/\" target=\"_blank\" rel=\"noopener noreferrer\">doorbell and visitor chime<\/a>. The products come with a 2-year warranty, and the product service life is guaranteed to be more than 5 years. Customers are also supported by a professional sales consulting team and timely technical assistance.<\/li>\n<li aria-level=\"1\">The operating range of the wireless doorbell has been improved. 433MHz RF transmission technology provides strong signal transmission from the push button to the chime receiver, where the ringtone is generated. The chime can be heard throughout the house, with a signal transmission range of approximately 20\u201370 m.<\/li>\n<li aria-level=\"1\">Expandable pairing capability provides greater convenience for large and multi-storey houses. One KAWASAN doorbell receiver can be paired with up to 4 push buttons, while one push button can be paired with multiple chime receivers. This helps homeowners avoid the additional cost of purchasing a complete doorbell set with one receiver and one push button for every area of the house.<\/li>\n<li aria-level=\"1\">Independent RF receiving channel: With this feature, your wireless doorbell will not interfere with your neighbor's doorbell. Each system is paired using a separate coded channel, helping prevent situations where pressing your push button causes your neighbor's chime to ring, or vice versa.<\/li>\n<\/ul>\n<figure id=\"attachment_16727\" aria-describedby=\"caption-attachment-16727\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16727\" title=\"The DB668B wireless doorbell comes with an official 2-year KAWASAN warranty.\" src=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2024\/02\/DB668B.png\" alt=\"Chu\u00f4ng c\u1eeda kh\u00f4ng d\u00e2y DB668B b\u1ea3o h\u00e0nh ch\u00ednh h\u00e3ng Kawasan 2 n\u0103m\" width=\"600\" height=\"451\" srcset=\"https:\/\/kawasan.vn\/wp-content\/uploads\/2024\/02\/DB668B-463x348.png 463w, https:\/\/kawasan.vn\/wp-content\/uploads\/2024\/02\/DB668B-400x300.png 400w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-16727\" class=\"wp-caption-text\">The DB668B wireless doorbell comes with an official 2-year KAWASAN warranty.<\/figcaption><\/figure>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"TAI_SAO_NEN_CHON_KAWASAN\"><\/span><b>WHY CHOOSE KAWASAN?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>A leading Vietnamese brand in the fields of automatic electrical equipment, security, safety, and smart electrical devices since 2007, as well as residential LED lighting and solar lighting since 2012.<\/li>\n<li>High durability with selected components \u2013 Stable operation even in harsh weather conditions<\/li>\n<li>Superior warranty policy \u2013 Repair support is available even after the warranty period if the product can still be restored<\/li>\n<li>Kawasan currently has its head office in Ho Chi Minh City, branches in Hanoi and Da Nang, and a production and assembly workshop in District 12, Ho Chi Minh City.<\/li>\n<li>24\/7 support service and a nationwide dealer network<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"CAM_KET_TU_KAWASAKAWASAN\"><\/span><b>KAWASAN COMMITMENT<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Kawasan is committed to providing products\u00a0<b>genuine \u2013 durable \u2013 safe<\/b>, fully meeting technical standards and practical usage requirements. All products are covered by warranty\u00a0<b>free of charge for 24 months<\/b>,\u00a0<b>1-for-1 replacement within 30 days<\/b>\u00a0if it is a technical defect. In addition, customers are also supported with repair services after the warranty period if the product can still be restored,\u00a0<b>free of charge<\/b>\u00a0if the cost of replacement components is insignificant. Customers can purchase products at dealers within<a href=\"https:\/\/kawasan.vn\/en\/he-thong-phan-phoi\/\">\u00a0<b>NATIONWIDE DISTRIBUTION SYSTEM<\/b><\/a>\u00a0provinces and cities nationwide, or place orders on the website.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Mua_chinh_hang_tai\"><\/span><b>Buy genuine products at:<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Contact the sales department directly for wholesale, dealer \/ distributor pricing:\u00a0<b>0825 411 408 \/ 0911 757234<\/b><\/li>\n<li>Website:<a href=\"https:\/\/kawasan.vn\/en\/?_gl=1*105adfi*_gcl_aw*R0NMLjE3NTIwMzE4NzkuQ2p3S0NBandnN1BEQmhCeEVpd0FmMUNWdV9YNVk5RVVUUU5jeFRHZFlNak5VdGd5OEdlM2M1YlNNbHZWaW9qMFNZengtN0VQMk1yVFdSb0NCM2dRQXZEX0J3RQ..*_gcl_au*MTcyOTk0ODg3Ny4xNzU2ODY1NTgwLjExOTQzNDk4NzkuMTc1NzQ5MTY0MS4xNzU3NDkxNjQw\">\u00a0www.kawasan.vn<\/a>\u00a0(For Kawasan products)<\/li>\n<li>Website:<a href=\"https:\/\/www.kawaled.com.vn\/\">\u00a0www.kawaled.com.vn<\/a>\u00a0(For Kawaled products)<\/li>\n<\/ul>\n<p><strong>Reference Articles and Videos on Applications, Benefits, and User Instructions<\/strong><\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Refer to product-related articles:\n<ul>\n<li>Article 1 <a class=\"row-title\" href=\"https:\/\/kawasan.vn\/wp-admin\/post.php?post=25977&amp;action=edit&amp;classic-editor\" aria-label=\"\u201cChu\u00f4ng c\u1eeda kh\u00f4ng d\u00e2y: Gi\u1ea3i ph\u00e1p ti\u1ec7n l\u1ee3i, linh ho\u1ea1t cho m\u1ecdi kh\u00f4ng gian s\u1ed1ng hi\u1ec7n \u0111\u1ea1i\u00a0\u00a0\u201d (Ch\u1ec9nh s\u1eeda)\">Chu\u00f4ng c\u1eeda kh\u00f4ng d\u00e2y: Gi\u1ea3i ph\u00e1p ti\u1ec7n l\u1ee3i, linh ho\u1ea1t cho m\u1ecdi kh\u00f4ng gian s\u1ed1ng hi\u1ec7n \u0111\u1ea1i<\/a><\/li>\n<li>B\u00e0i vi\u1ebft 2: <a class=\"row-title\" href=\"https:\/\/kawasan.vn\/wp-admin\/post.php?post=23641&amp;action=edit&amp;classic-editor\" aria-label=\"\u201cNguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a chu\u00f4ng c\u1eeda kh\u00f4ng d\u00e2y Kawasan\u201d (Ch\u1ec9nh s\u1eeda)\">Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a chu\u00f4ng c\u1eeda kh\u00f4ng d\u00e2y Kawasan<\/a><\/li>\n<\/ul>\n<\/li>\n<li>Watch videos introducing the product, its applications, and instructions for use:\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Product introduction video: <a id=\"video-title\" class=\"yt-simple-endpoint style-scope ytd-video-renderer\" title=\"CHU\u00d4NG C\u1eecA KH\u00d4NG D\u00c2Y CH\u1ed0NG N\u01af\u1edaC - MODEL DB668B\" href=\"https:\/\/www.youtube.com\/watch?v=b2nGQEOE_7A&amp;t=3s\" aria-label=\"CHU\u00d4NG C\u1eecA KH\u00d4NG D\u00c2Y CH\u1ed0NG N\u01af\u1edaC - MODEL DB668B 3 ph\u00fat, 34 gi\u00e2y\">CHU\u00d4NG C\u1eecA KH\u00d4NG D\u00c2Y CH\u1ed0NG N\u01af\u1edaC &#8211; MODEL DB668B<\/a><\/li>\n<li>Video h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng:<a id=\"video-title\" class=\"yt-simple-endpoint style-scope ytd-video-renderer\" title=\"CHU\u00d4NG C\u1eecA KH\u00d4NG D\u00c2Y \u0110\u01af\u1ee2C \u01afU CHU\u1ed8NG NH\u1ea4T - DB668B - KAWASAN\" href=\"https:\/\/www.youtube.com\/watch?v=wFCesrmHgGM&amp;t=17s\" aria-label=\"CHU\u00d4NG C\u1eecA KH\u00d4NG D\u00c2Y \u0110\u01af\u1ee2C \u01afU CHU\u1ed8NG NH\u1ea4T - DB668B - KAWASAN 2 ph\u00fat, 23 gi\u00e2y\">CHU\u00d4NG C\u1eecA KH\u00d4NG D\u00c2Y \u0110\u01af\u1ee2C \u01afU CHU\u1ed8NG NH\u1ea4T &#8211; DB668B &#8211; KAWASAN<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Nh\u00e0 s\u1ea3n xu\u1ea5t: KawasanM\u00e3 s\u1ea3n ph\u1ea9m: DB668BT\u00ecnh tr\u1ea1ng:C\u00f2n h\u00e0ng<\/p>","protected":false},"featured_media":16712,"comment_status":"open","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"Chu\u00f4ng c\u1eeda kh\u00f4ng d\u00e2y","_yoast_wpseo_metadesc":"Chu\u00f4ng c\u1eeda kh\u00f4ng d\u00e2y DB668B d\u00f9ng s\u00f3ng RF433Mhz, C\u00f3 ba m\u1ee9c \u00e2m lui\u0111\u1ec3 l\u1ef1a ch\u1ecdn: Cao\/trung b\u00ecnh\/th\u1ea5p. v\u00e0 32 ki\u1ec3u chu\u00f4ng \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t s\u1eb5n","_yoast_wpseo_focuskeywords":"","_yoast_wpseo_keyword_synonyms":""},"product_cat":[505,41,85],"product_tag":[1220,720,1223,1219,1227,1222,723,1228,1229,1230,1226,1027,1038,718,1039,1217,1218,719,1221,1231,1232,621,1224,1225],"class_list":["post-6350","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-chuong-cua-khong-day","product_cat-chuong-cua-chuong-bao-khach","product_cat-hang-khuyen-mai-soc","product_tag-chuong-bam-cua","product_tag-chuong-bam-cua-khong-day","product_tag-chuong-bao-cua-ra-vao","product_tag-chuong-bao-dong-khong-day","product_tag-chuong-bao-khach-cho-cua-hang","product_tag-chuong-bao-khach-kawasan","product_tag-chuong-bao-khach-khong-day","product_tag-chuong-bao-trom","product_tag-chuong-cam-bien-bao-dong","product_tag-chuong-cam-bien-kawasan","product_tag-chuong-cong-ko-day","product_tag-chuong-cua","product_tag-chuong-cua-bao-khach","product_tag-chuong-cua-khong-day","product_tag-chuong-cua-thong-minh","product_tag-chuong-dien-khong-day","product_tag-chuong-goi-phuc-vu-khong-day","product_tag-chuong-khong-day","product_tag-chuong-nha","product_tag-dau-bao-cam-bien","product_tag-dau-chuong-bao-khach","product_tag-kawasan","product_tag-pin-chuong-cua","product_tag-pin-chuong-cua-khong-day"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.9 (Yoast SEO v24.9) - 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