Description: USB dual port AZ16-1 battery charger for Xiaomi Yi 4K action cameras. Intelligent lcd display each channel charing status and battery capacity. Can charge two batteries simutaneously saving your time and efforts. Offers intelligent charging that provides overcurrent protection, overcharge protection, protection against short circuits. Universal dual battery charger works with smartphone USB charging head, USB port of computers etc. Specification: Material: PVC+Metal Size: Approx. 80×50×21mm/3.1×1.9×0.82" Input: 5V 2A Output: 4.2V 600mA Compatible with: for Xiaomi Yi AZ16-1 AZ16-2 Xiaomi Yi 4K Xiaomi Yi 4K+ Xiaomi Yi Lite Xiaomi YI 360 VR action camera. Package Includes: 1 Piece Battery Charger with Charging Cable Note: Please allow a slightly errors due to manual measurement