Audio specifically refers to an audio system that produces sound from a combination of electrical equipment. Audio export to the EU needs to apply for a CE certification clearance certificate, and speakers for CE certification for EMC electromagnetic compatibility and LVD low voltage testing.

The UN38.3 certification project is actually Article 38.3 in Part 3 of the \"United Nations Handbook of Dangerous Goods Transport Tests and Standards\" drafted and implemented by the United Nations. The specific definition is based on the \"Dangerous Goods Transport Regulations\", which only refers to the transportation safety of lithium batteries carry out testing. Lithium batteries are further divided into rechargeable lithium ion batteries and non-rechargeable lithium metal batteries. Each type of lithium battery must be tested without any problems before the UN38.3 safety test report can be issued. At this time, the lithium battery will be recognized as capable Safe transportation (more common such as air transportation, sea transportation), and the packaging method of lithium battery transportation is divided into pure battery separate packaging, packaged with the equipment, and transported on the equipment. Any laboratory capable of UN38.3 testing can issue the report, but if only the UN38.3 report is available, the battery cannot be transported for export in Mainland China. It is also necessary to provide a report on the identification of cargo transportation conditions, referred to as the identification, which is divided into air, sea and land transportation. The identification results of different packages are different. In order to fully guarantee the safety of the goods in the transportation process, the handling of the UN38.3 certification project report for lithium batteries is very necessary and very meaningful.

TELEC certification is also called MIC certification. TELEC (Telecom Engineering Center) is the main registered certification body for conformity certification of radio equipment in Japan, MIC (Ministry of Internal Affairs and Communications) is the government agency that regulates radio frequency equipment in Japan, and MIC is the Ministry of Internal Affairs and Communications of Japan, responsible for compiling regulations and standards. TELEC is only one of the designated issuing agencies for MIC, so it is called TELEC certification or MIC certification.

Required information for PSE certification of lithium batteries; PSE certification is a Japanese mandatory safety certification to prove that electrical and electronic products have passed the Japanese Electrical and Material Safety Law (DENAN Law) or the international IEC standard safety standard test. Japan’s DENTORL Law (Electrical Device and Material Control Law) stipulates that 498 products must pass safety certification to enter the Japanese market. Among them, 165 types of A products should obtain the diamond-shaped PSE mark, and 333 types of B products should obtain the round PSE mark.

The 8th category of the CCC product catalog, \"Audio and Video Equipment\" 0801 sub-category, stipulates that \"single-speaker and multi-speaker active speakers with total output power below 500W (effective value)\" (ie audio) need to apply for CCC compulsory certification. That is to say, speakers with a total output power of <500W are products within the scope of the 3C certification product catalog and need to be CCC certified.

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REACH is an abbreviation, which is the abbreviation of EU regulations \"Registration, Evaluation, Licensing and Restriction of Chemicals\". REACH testing exists in a wide range of industries. Anyone subject to REACH regulations must complete the REACH regulatory obligations. It can basically be divided into substances, preparations, There are three major categories of articles, and the tested substances are substances that have been identified as SVHC.

The LED electronic display is used indoors, that is, the voltage used in a natural environment that will not be directly affected by wind, rain, sun and other climatic conditions is 220V, and it needs to be connected to a computer when working. This product belongs to indoor display equipment, and belongs to the \"Product Catalog for Batch Implementation of Compulsory Product Certification\". The display equipment used in conjunction with computers in the information technology equipment must pass the 3C certification before it can be shipped, sold, imported or used in other business activities. For the products listed in the catalog, since May 1, 2003, products that have not obtained the compulsory product certification certificate and have not applied the Chinese compulsory certification mark shall not be shipped, imported or sold.