A power bank is a portable charger that can be carried by individuals and can store electrical energy. It is mainly used to charge handheld mobile devices and consumer electronic products (such as mobile phones and laptops). It is mainly used in situations where there is no external power supply. However, in general, FCC certification is required for such products to be exported to the United States.

Electric fan is abbreviated as electric fan, also known as fan or fan. It is a household appliance that uses a motor to drive fan blades to accelerate air circulation. It is widely used in homes, classrooms, offices, shops, hospitals, hotels and other places. , Mainly used for cooling and relieving heat and circulating air. But generally our common fan products need to go through EMC electromagnetic compatibility testing and certification before they want to be put on the market.

Bluetooth headsets are headsets with Bluetooth wireless communication capabilities, which can be roughly divided into three types: mono Bluetooth headsets, stereo Bluetooth headsets, and true wireless Bluetooth headsets. Nowadays, Bluetooth headsets are deeply loved by consumers, and they have developed into a good tool for mobile business people to improve efficiency. However, generally, such products need to be certified by SRRC if they want to be produced and sold in China.

With the continuous development of science and technology, many smart devices now have Bluetooth function, but generally such devices need to apply for FCC-ID certification if they want to export to the US market.

Bluetooth loudspeaker, as the name suggests, this loudspeaker is transmitted by Bluetooth signal. It is composed of two parts, one is the transmitter on the hand, and the other is the receiver, which is mainly used in the teaching field. The teacher uses the lecturer in his hand to send a Bluetooth signal during teaching to achieve the purpose of amplifying the sound. However, in general, this kind of Bluetooth device needs to be certified by SRRC if it wants to be sold on the market.

2.4GHz refers to a working frequency band, 2.4GHz ISM (Industry Science Medicine) is a wireless frequency band that is publicly used all over the world. Bluetooth technology works in this frequency band. Working in the 2.4GHz frequency band can get a larger range of use. And stronger anti-interference ability, widely used in household and commercial fields. Typical 2.4GHz products include Bluetooth, WIFI, cordless phones, etc. However, in general, these products need to be certified by TELEC if they want to export to the Japanese market.

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Earphones are divided into headsets, bluetooth earphones, wired earphones, sports earphones, etc. They belong to information technology products and can be seen everywhere in our daily lives. However, if the earphones want to be sold on major domestic e-commerce platforms, they need to be processed Quality inspection report.