The Wi-Fi module, also known as the serial port Wi-Fi module, belongs to the transmission layer of the Internet of Things. Its function is to convert the serial port or TTL level into an embedded module that conforms to the Wi-Fi wireless network communication standard. The built-in wireless network protocol IEEE802.11b. Protocol stack and TCP/IP protocol stack. Nowadays, the wireless network is very developed, and there are wireless networks everywhere, and the export of this WiFi module to the EU area also needs to apply for CE-RED certification.

FCC-ID is one of the compulsory FCC certification models in the United States, which is suitable for wireless products with high technical difficulties. Products with wireless transmission frequencies, such as Bluetooth devices, WiFi devices, wireless alarm devices, radio receiving and transmitting devices, phones, computers, etc., need to apply for FCC-ID certification. The certification of wireless products is directly approved by the FCC TCB agency, and the certification certificate can be checked on the official website of the FCC in the United States. The time period is 3-4 weeks and no factory inspection is required. If the product standard remains unchanged, it is always valid.

Wireless routers are very common household electronic products. Family mobile phones, computers, tablets and other Internet access require routers to connect to the Internet. A qualified router must not only meet the performance standards, but also in terms of information security, electrical safety, electromagnetic compatibility, and radio frequency. It is also necessary to meet the basic requirements of EU CE certification, which is the basic requirement for routers to enter the EU market.

The FCC divides the regulated products into two categories: A and B according to their usage conditions: Category A is products for commercial or industrial purposes, and Category B is products for household purposes. The FCC has stricter regulations on Category B products; this This is because home users generally lack the professional skills training of professional and technical personnel; and the electrical safety environment of the home is not as favorable as the office environment. Therefore, the safety requirements for products used by home users are more stringent than those used in commercial industrial environments.

The new directive will be implemented on June 13, 2016. Each member state must complete the legislative process by June 12, 2016. Radio equipment that has complied with the old directive before June 13, 2016 can still be sold on the market before June 13, 2017. That is, the transition period is 1 year. After June 13, 2017, only wireless devices assessed in accordance with the new RED 2014/53/EU will be allowed to be sold on the EU market. The previously implemented Radio Equipment and Telecommunications Terminal Equipment Directive (Directive 1999/5/EC) will be abolished.

CE-RED certification is abbreviated as Red certification (European wireless product certification), and the purpose is that wireless products entering Europe must pass this test certification. The CE (Conformite Europeenne, European Union) mark is a safety certification mark and is regarded as a passport for manufacturers to open and enter the European market. In the EU market, the CE mark is a compulsory certification mark. All products with the CE mark can be sold in the member states of the European Union (EU CE certification) without meeting the requirements of each member state, thus realizing the scope of the product Free circulation within.

The \"CE\" mark is a safety certification mark and is regarded as a passport for manufacturers to open and enter the European market. CE stands for Conformite Europeenne. In the EU market, the \"CE\" mark is a compulsory certification mark. All products affixed with the \"CE\" mark can be sold in the EU member states without meeting the requirements of each member state, thus realizing the product in the EU member states Of free circulation.

Bluetooth speakers are also called Bluetooth speakers, also known as speakers and stereos. It is a transducer or electronic component that converts electronic signals into sound. It can be composed of one or more audio groups. The Bluetooth speaker uses Bluetooth technology to build a local area network with a certain distance; then, the relative electronic devices are allowed to communicate and exchange information in it. Bluetooth speakers have the function of wireless Bluetooth connection; therefore, Bluetooth devices sold or circulated in China need to be certified by China Wireless.