According to the Regulations on the Administration of Imported Radio Transmitters and the Regulations on the Administration of Production Radio Transmitters, In order to strengthen the management of imports and production of radio transmission equipment, All radio transmitting equipment exported to the People's Republic of China, or radio transmitting equipment produced within the territory of the People's Republic of China (including trial production) must be held by the State Radio Regulation Committee (SRRC) on its launch characteristics. The type approval certificate for radio transmission equipment issued after the type approval. The type approval code must be indicated on the label of the ex-factory equipment. Products that meet the catalog requirements must be mandatory.