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With the powerful functions of mobile phones, the alarm clocks used by modern people are all built-in alarm clock functions of mobile phones. Traditional alarm clocks have gradually withdrawn from the stage of history. However, with the development of smart homes, alarm clocks have also followed the trend and launched smart alarm clock products. Smart alarm clocks generally have functions such as smart wake-up, smart schedule reminder, calendar, desk lamp, voice wake-up, network query, etc., and can almost be regarded as a small smart speaker. However, in general, 3C certification is required for such smart products to be sold in the domestic market.

The wireless network card is equivalent to a terminal wireless network device, which needs to be used for Internet access through a wireless connection network under the wireless coverage of the wireless local area network. Because of its superior flexibility and convenience, wireless network cards have developed rapidly and are very popular. However, in general, SRRC certification is required for such products to be produced and sold in China.

A humidifier is a household appliance that increases the humidity in a room. With people\'s pursuit of a healthy and comfortable life, the functions and functions of humidifiers, a relatively unfamiliar small household appliance, are gradually being accepted, and the scope of use is gradually increasing. It can play a role in regulating indoor humidity, increasing the humidity in the air, thereby protecting people\'s respiratory tract and reducing the chance of respiratory tract infection. However, in general, CE certification is required for such products to be exported to EU countries.

For some people (especially those who like to play games), the use of the original notebook keyboard is relatively poor in comfort and use. The emergence of wireless keyboards not only solves this problem, but also It can effectively simplify the communication between mobile communication terminal devices such as palm computers, notebook computers and mobile phones, and is deeply loved by people. However, generally, such wireless products need to be certified by SRRC if they want to be put on the domestic market.

The working principle of the vacuum cleaner is to use the motor to drive the blades to rotate at a high speed, generate negative air pressure in the sealed casing, and absorb dust. The vacuum cleaner can be divided into vertical, horizontal and portable according to the structure. In this fast-paced era, most people simply don’t have much time to clean up their home hygiene, but health issues cannot be ignored either. Therefore, for many families, vacuum cleaners are the right-hand solution to labor and are deeply loved by people. However, in general, PSE certification is required for such products to be exported to the Japanese market.

With the improvement of people\'s living and cultural level, smart technologies are slowly becoming common in our daily lives. The emergence of smart electronic products has greatly facilitated our lives, and electronic scales are one of them. The emergence of electronic scales allows us to weigh and purchase items more accurately, so that our interests are protected, and are widely used in many places in our daily lives, such as supermarkets, homes, restaurants, markets, and so on. However, if such products want to be exported to the EU market, CE certification is required.

The TWS headset is a brand new wireless Bluetooth headset. There is no traditional physical wire. The two left and right headsets can work independently without a cable connection. It completely eliminates the troubles of wiring. It can also be used as a dual device and is deeply loved by people. . However, in general, such wireless products need to be certified by SRRC if they want to be produced and sold in China.

TWS adopts a bilateral working mode, which enables wireless headsets to achieve true stereo sound. It not only allows the wireless headset to play the sound on the left and right channels, but also achieves stability and low latency, making people feel like they are on the scene. However, if such products want to be exported to the EU market, CE certification is required.