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(rèn)聯(lián)科 time:2020-08-21 Ctr:1968

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
  • Compliance leads to bestsellers! Key points to know for SRRC Certification of Smart refrigerators

  • CE certification for smart dishwashers: Ensuring quality and expanding the European market

  • Focus on the CCC certification of power adapters for sweeping robots, safeguarding safety and quality

  • Electric shaver battery CCC certification: A dual guarantee of safety and quality

Follow Us
性色欲情网站iwww| 国产又色又爽又黄的在线观看| 国语自产精品视频在线区| 国产成人午夜福利在线观看视频 | 欧美性猛交xxxx乱大交蜜桃| 亚洲 另类 日韩 制服 无码| www夜片内射视频在观看视频| 青草内射中出高潮| 香蕉免费一区二区三区在| 好男人的社区在线| 久久久噜噜噜久久免费| 无套中出丰满人妻无码| 最近中文字幕在线MV10| 亚洲国产一成人久久精品| 性欧美vr高清极品| 精品三级av无码一区| 无码精品人妻一区二区三区人妻斩| 风流少妇又紧又爽又丰满| 天天爽夜夜爽人人爽一区二区 | 小泽玛莉亚一区二区视频在线 | 无遮挡呻吟娇喘视频免费播放| 日韩AV片无码一区二区三区不卡 | 91精品国产免费人成网站| 亚洲欧美一区二区三区日产| 国产毛片久久久久久国产毛片| 天堂sv在线最新版在线| 美女大胆视频| 国产日韩av在线播放| 中文字幕人妻色偷偷久久| 久久久国产乱子伦精品| 亚洲国产成人久久一区二区三区 | 北条麻妃一区二区三区av高清| 人人妻人人妻人人片色av| 国产午夜精品久久久久免费视| 无套内射在线无码播放| 日韩欧美1区| 久久精品全国免费观看国产| 91亚洲成人| 高跟鞋开裆丝袜做在线观看| 国产欧美精品一区二区| 亚洲12色吧|