The repeater is a portable machine that can store the sound and play it repeatedly. Mainly on the basis of the portable radio and cassette recorder, a multi-function language signal access device formed by adding a micro-processing chip and a digital storage chip. It converts the analog signal into a digital signal while the tape is playing, and stores it in the digital memory chip; in the replay state, the signal in the digital memory is converted into an analog signal, and the sound is restored by the speaker after power amplification. However, repeaters exported to Europe must apply for CE-RED certification.

The wireless walkie-talkie is a portable two-way radio transceiver, originally developed for military use. The main features include: half-duplex channel and press the button to transmit. The typical appearance is like a handheld phone, which is larger than an ordinary handheld phone, but only has a single device with an antenna on top. Hand-held transceivers have become very valuable communication tools for users such as police, emergency services, industry and commerce, and these services use dedicated frequencies. The walkie-talkie products use wireless transmission and wireless reception technology to transmit information. If you want to export to the United States, you need to apply for FCC-ID certification.

Bluetooth desk lamp is a very hot product category in the lighting market. People can control the light switch, adjust the brightness, etc. through Bluetooth, which is very convenient and easy to operate. However, if you want to go to Japan to sell Bluetooth desk lamps, you need to apply for PSE certification, and you need to apply for PSE certification?. ZRLK testing agencies are welcome to apply.

With the advent of the cold winter, how to keep warm is now a key issue that everyone is concerned about. At present, the most popular and most convenient hand warmers are mostly rechargeable. The use of internal electric heating not only effectively guarantees its recycling, but also is more intelligent in heating temperature adjustment. Nowadays, domestic hand warmers are not only more and more exquisite in production, but also more and more cost-effective. Therefore, there are more and more orders internationally, but if you want to enter the EU market for sales, you must handle it. CE-RED certification?.

Bluetooth headsets are headsets that use Bluetooth wireless technology to achieve sound reception and output. Compared with traditional wired headsets, Bluetooth headsets allow consumers to get rid of wire constraints and listen to music more conveniently. As an electronic product with Bluetooth function, the domestic production and sales of Bluetooth headsets require SRRC certification?.

A Bluetooth keyboard refers to a keyboard that performs wireless transmission through the Bluetooth protocol and performs Bluetooth communication within an effective range (within 10m). In fact, it is a short-distance radio technology, using \"Bluetooth\" technology, can effectively simplify the communication between handheld computers, notebook computers and mobile phones and other mobile communication terminal devices. So the appearance of Bluetooth keyboard can be said to have greatly improved people\'s daily life. However, if you want to export Bluetooth products to the United States for sale, you need to apply for FCC-ID certification. If you need to apply for FCC-ID certification, you can apply for ZRLK testing agency.

Compared with mechanical wall switches, smart switches have more features, safe use, and beautiful styles. Breaking the single function of the traditional wall switch on and off, in addition to the functional innovation, it also gives the switch decoration effect. Smart switches are widely used in many fields such as home intelligent transformation, office intelligent transformation, industrial intelligent transformation, agriculture, forestry, fishery and animal husbandry intelligent transformation, etc., which greatly saves energy, improves generation efficiency and reduces operating costs. Achieved an intelligent world. However, if electronic and electrical products want to be exported to Japan for sale, related products need to obtain a PSE certificate and affix a PSE certification label before they can be circulated and sold in the Japanese market.

A wireless mouse refers to a mouse that is directly connected to the host without a cable, and uses wireless technology to communicate with the computer, thereby eliminating the need for wires. Usually wireless communication methods are used, including multiple wireless technology standards such as Bluetooth, Wi-Fi (IEEE802.11), Infrared (IrDA), ZigBee (IEEE802.15.4), etc. Of course, the domestic sales of Bluetooth devices must be SRRC type approval certification.