中文字幕日韩在线观看,久久久人人玩人妻精品综合,国产欧美日本在线,久久精品免费视频6,欧美精品黄色网站,色综合久久久久无码专区,亚洲区欧美中文字幕久久,国产手机在线视频,国产中文字幕视频在线观看,日本一区二区免费在线观看

Hotline:400-880-1556

English




TWS headset CE certification test items

Author:中認聯(lián)科 time:2020-08-21 Ctr:1590

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
  • How do smart desk lamps pass CE certification? ZRLK is your escort

  • Sodium battery UN38.3 certification: a key link to ensure product safety and compliance

  • CCC certification points of large capacity charging box: battery, headphones can not be less

  • CCC certification of the earphone charging case: The rated capacity of the battery cell is less than 600mAh.

Follow Us
2020久久天天躁狠狠躁夜夜| 亚洲综合久久成人AV| 国产午夜福利精品一区二区三区| 综合色天天鬼久久鬼色| 真实国产乱子伦沙发| 久久综合九色综合桃花| 大乳丰满人妻中文字幕日本| 亚洲国产精品成人综合色在线| 色综合综合| 91色视频网站| 欧美性黑人极品hd| 国产麻豆精品久久一二三| 精品国产乱码久久久久久郑州公司| 亚洲高清偷拍一区二区三区| 日本熟妇色一本在线视频| 四虎永久在线精品8848a| 久久精品是免费100| 亚洲欧洲日产国码av| 欧美一区二区精彩视频| 国产香蕉在线观看| 婷婷久久综合九色综合绿巨人| 性欧美视频videos6一9| 国产精品无码一区二区三区电影| 18精品久久久无码午夜福利| 欧美激情a∨在线视频播放| 国产乱人伦av在线麻豆a| 无码日韩精品国产av| 日韩人妻无码免费视频一区二区三区 | 中文在线天堂网www| 麻豆人妻少妇精品无码专区| 亚洲av 无码片一区二区三区| 国产农村妇女精品一二区| 最新国产精品无码| 野外少妇激情AA 级视频| 成人免费无码大片A毛片| 尤物国产在线精品一区| 国产欧美亚洲精品第一页| 久久综合久久综合九色| 久久亚洲精品成人无码网站| 精品亚洲国产成人av| 欧美爆乳乱妇高清免费|