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
小sao货水好多真紧h视频| 久久久无码精品亚洲国产| 日韩精品无码av中文无码版| 色欲av永久无码精品无码蜜桃| 久久不见久久见免费影院www日本 亚洲啪av永久无码精品放毛片 | 人妻va精品va欧美va| 色久悠悠婷婷综合在线亚洲| 色欲人妻综合aaaaaaaa网| 成 年 人 黄 色 大 片大 全| 国产av综合影院| 97se亚洲国产综合自在线观看| 久久久久久久亚洲av无码 | 无码av天天av天天爽| 欧美黑人xxxx高潮猛交| 国产成人精品高清免费| 特级猛片在线播放| 欧美成人一区二区三区在线观看 | 人妻大战黑人白浆狂泄| 内射夜晚在线观看| 精品免费国产一区二区| 日韩精品人成在线播放| 精品国产一区二区三区香蕉| 亚洲精品综合久久中文字幕| 91精品人妻一区二区三区| 99re热久久亚洲综合精品动漫| 国产日产久久高清欧美一区| 中文字幕资源在线| 国产一起色一起爱| 国产裸体美女永久免费无遮挡| 精品一区二区三区国产在线观看| 日韩乱码人妻无码中文字幕视频 | 伊人久久大香线蕉av色婷婷色| 亚洲精品久中文字幕| 日本中文字幕网站| 亚洲av无码国产精品永久一区| 毛片免费视频在线观看| 精品日本一区二区三区免费 | 妺妺窝人体色WWW美女| 色欲AV蜜桃一区二区三| 疯狂撞击丝袜人妻| 女人被男人爽到呻吟的视频|