<blockquote id="m68pp"></blockquote>
    <ruby id="m68pp"></ruby>
    <style id="m68pp"></style>

  • <rt id="m68pp"></rt>
  • 国产少妇偷窥自拍,国产成人无码A片免费看,av超碰,人人妻人人狠人人爽,久久久久久亚洲精品成人,免费人妻无码不卡中文字幕系,人人玩人人添人人澡超碰,宝贝腿开大点我添添公口述视频
    Hotline:400-880-1556

    English




    TWS headset CE certification test items

    Author:中認聯(lián)科 time:2020-08-21 Ctr:2785

    What is TWS headset

    TWS is the abbreviation of True Wireless Stereo in English, which means true wireless stereo. TWS technology is also based on the development of Bluetooth chip technology. According to its working principle, it means that the mobile phone connects to the main earphone, and then the main earphone quickly connects to the secondary earphone wirelessly, so as to realize the wireless separation of the left and right channels of Bluetooth. When the slave speaker is not connected, the main speaker returns to mono sound quality. TWS technology has been applied to the field of bluetooth headsets, so a new product-TWS bluetooth headset was born.

     image.png

    TWS headset CE certification test items

    1. The CE testing standards and items required for TWS headsets include EMC testing, RF testing, SAR evaluation, and LVD testing.

    2. EMC tests whether the headset conforms to the CE directive on electromagnetic compatibility standards;

    3. The RF test is aimed at the test of radio communication products. Since the wireless headset uses wireless Bluetooth technology, it must meet the requirements of CE-RF;

    4. SAR is the electromagnetic wave absorption ratio, which is aimed at the safety and health protection requirements of electronic and electrical products;

    5. LVD test is a low voltage directive to ensure that the equipment is safe to use under low voltage conditions. The part with a charging box also needs to meet the requirements of the LVD directive.

    TWS Bluetooth headset CE certification process

    1. Fill in the CE application form

    2. Provide information and samples (engineering prototype and normal prototype)

    3. Pass the laboratory test

    4. Issuing a certificate in compliance with CE standards

    Information required for TWS headset application certification

    1. English manual

    2. BOM table

    3. Product block diagram

    4. Circuit schematic

    5. Operation description of circuit principle

    For more information about the CE certification of TWS headsets, please call ZRLK for detailed inquiries. Professional engineers will answer you online. If you provide us with product pictures and specifications, we will give us the corresponding cycle, quotation and specific plan according to your product. Welcome to inquire.

    image.png


    Related Articles
    • Heavy update! EU REACH tightens again, and hydrogenated terphenyls is about to be restricted

    • Heavy notice: SASO Type-C regulations are extended to May 1, 2026

    • Urgent notice | IEC 62133-1: 2026 released! The safety standard of nickel battery has been updated for the first time in nine years, and export enterprises must see it!

    • Get This "Passport", and Your Wireless Mouse Can Be Legally Sold in Japan

    Follow Us
    主站蜘蛛池模板: xxxx欧美| 少妇无码| 一本色道久久加勒比精品| 精品中文人妻在线不卡| 亚洲成a人片77777kkkk| 国产精品综合一区二区三区| 国产欧美日韩精品第二区| 亚洲AV无码乱码在线观看性色| 成人精品免费视频在线观看| 日韩人妻无码精品久久免费一| 成人免费午夜无码视频在线播放| 狠狠躁夜夜躁人人爽天天| 亚洲最大天堂在线看视频| 国产中文字幕精品免费| 亚洲AV一二三区成人影片| www.youjizz.com国产| 亚洲 欧美 综合 高清 在线| 久久99热只有频精品8| 亚洲av第二区国产精品| 福利导航大全| 精选国产av精选一区二区三区| 中文字幕另类小说| 亚洲六月丁香六月婷婷蜜芽| 亚洲综合无码| 浮妇高潮喷白浆视频| 东京热tokyo综合久久精品| 国产亚洲av| 人妻无码系列| 妲己色站| 日韩人妻系列无码专区| 无遮高潮国产免费观看韩国| 日韩放荡少妇无码视频| 日韩精品卡1卡2日韩在线| av动态| 久久精品国产免费观看频道| 日本一区三区在线视频| 中文字幕有码免费视频| 熟女爱V| 怡红院一区二区三区在线| 亚洲国产成人久久综合区| 黄色影站|