1SMALL AND PORTABLE: Small in size and equipped with storage bag, it can be easily carried and convenient. 3 charging slots, you can charge 13 products at will. Specially designed for charging for Wireless GO I / II microphones. 2INTELLIGENT CONTROL: Intelligent control of the charging process, with over current protection, over voltage protection, over temperature protection and abnormal detection functions. 3MAGNETIC OPENING AND CLOSING LID DESIGN: It is designed with a magnetic opening and closing cover. Large capacity of 3400mah, long lasting battery life. With a USB A interface, it can reversely supply power to other corresponding interface devices. 4ACCURATE CARD POSITION: The card position is accurate, the equipment is not easy to fall, and the installation and disassembly are easy and free. The indicator light can easily check the charging status and battery capacity. 5SAFE FLAME RETARDANT MATERIAL: It is made of safe flame retardant materials and has an intelligent charging system to prevent overcharging of the battery and realize fast charging at the same time, saving you valuable time. Item Type: Wireless Microphone Charging Box Material: ABS Model: ZG-R30 Type C Input: 5V/2.4A, 9V/2A, 12V/1.5A(Maximum) Type C Output: 5V/500MAx3(Maximum) USB A Output: 5V/2.4A Working Temperature: -20-55 Charging Box Size: Approx. 135x66x72.5mm / 5.3x2.6x2.9inBattery: Built in Battery 3400mAh (Delivered with Built in Battery) Maximum Full Charge Time: About 2H Applicable Equipment: For Rod Wireless GO I / II Microphone 1 x Charging Case 1 x USBC C Charging Cable 1 x USBC A Charging Cable 1 x Storage Bag 1 x Manual Please allow 01mm / 00.04in error due to manual measurement. Thanks for your understanding.