2x high-performance battery Battery type: Li-polymer Capacity: 1180 mAh Voltage: 3.7 V Energy: 4.4 Wh Colour: black 1x mini USB-charger Colour: black 1x dual-charger Charges up to 2 batteries reliably & quickly Can be used in conjunction with any standard USB adapter on the mains/car network Input: 5 V Output: DC 4.2 V / 2x 0.