EMC testing is also called electromagnetic compatibility (EMC), which refers to the comprehensive evaluation of the electromagnetic field interference (EMI) and anti-interference ability (EMS) of electronic products. It is one of the most important indicators of product quality. The measurement of electromagnetic compatibility The test site and test equipment are composed. The purpose of EMC testing is to detect the influence of electromagnetic radiation generated by electrical products on the human body, the power grid in public places and other electrical products that work normally.

China Quality Certification Center (English abbreviation CQC) is a professional certification body approved by the national competent authority. CQC and its branches at home and abroad are China\'s earlier authoritative certification bodies for certification work. Over the past decades, they have accumulated rich certification work experience and achieved outstanding results in various businesses. The CQC mark certification is one of the voluntary product certification services carried out by the China Quality Certification Center. The application of the CQC mark indicates that the product meets the relevant certification requirements for quality, safety, performance, electromagnetic compatibility, etc.

Bluetooth speaker is an important entertainment facility in daily life. Because it can transmit wirelessly, it has a broader market than traditional wired speakers.As my country’s Wireless Commission stipulates that “all wireless products sold in my country need to be SRRC certified”, Bluetooth speakers need to be SRRC certified, that is, radio product type approval certification, before they are sold in the market.

The CB system is an international system operated by the \"International Electrotechnical Commission Electrotechnical Product Qualification Testing and Certification Organization\" (IECEE). The certification bodies of each member country of IECEE test the safety performance of electrical products based on the IEC standard.

Bluetooth speaker is an important entertainment facility in daily life. Because it can transmit wirelessly, it has a broader market than traditional wired speakers. As my country’s Radio Commission stipulates that “all wireless products sold in my country need to be SRRC certified”, Bluetooth speakers need to be SRRC certified, that is, radio product type approval certification, before they can be distributed in the market.

Almost there will be batteries in various mobile devices, such as Bluetooth speakers, Bluetooth headsets, and mobile power supplies. Many batteries are classified as dangerous goods. Whether it is during transportation or export, it is basically necessary to provide test or certification reports or certificates. Common ones are battery MSDS or air and sea appraisal certificates, which are needed during transportation. Different countries have different testing and certification requirements for batteries. When batteries are exported, relevant certification and testing certificates must be provided for customs inspection.

PSE certification is a mandatory market access system for electrical appliances in Japan (called \"fitness inspection\" in Japan), and is an important content stipulated in the \"Electrical Appliances Safety Law\" in Japan. PSE is the abbreviation of English \"Product Safety of Electrical Appliance&Materials\". At present, the Japanese government divides electrical appliances into \"specific electrical appliances\" and \"non-specific electrical appliances\" in accordance with the Japanese \"Electrical Appliances Safety Law\", among which \"specific electrical appliances\" include 115 products; \"non-specific electrical appliances\" Includes 339 products.

SRRC is a compulsory certification requirement of the National Radio Regulatory Commission. Since June 1, 1999, the Ministry of Information Industry (MII) of China has mandated that all radio component products sold and used in China must obtain a radio model Radio Type Approval Certification (Radio Type Approval Certification).