Description: Triple your camera runtime with a 3-channel charger and Micro USB cable. 4 Ways to Charge: Can be charged by wall, car, Laptop,and power bank charging for added convenience. Perfect Compatibility: Made to the exact specification of AZ16-1 AZ16-2 battery, compatible with Xiaomi Xiaoyi 4K/4K+ Action Camera. Charge 3 Battery at the Same Time: Innovative design allowing for charging 3 or 2 batteries at the same time and 3 independent Smart LED light indicated RED when charging and GREEN when complete. Features four layers of protection: over-charging, short-circuit, high-temperature, and surge protection. Specification: Input: 5v/2A Output: 4.35v/0.5A*3 Size: 83*53*18mm Package Includes: 1Piece Battery Charger 1Piece Charging Cable