Features: NP-40 Battery Charger + 2 NP-40 Battery Kit Battery Charger Input: DC 5V 1A, Output: DC 4.2V, 400mA, Micro USB Charging Port With the USB charging cable, you can charge the battery through a laptop, a power adapter, a power bank, etc. With LED indicator to show charging status, red light: power charging, green light: fully charged. 2 x 3.7V 800mAh Li-Ion Polymer Battery for convenient replacement. Specifications: Colour: black. Battery capacity: 3.7V 800mAh Charging port: Micro USB Charger size: 6.5 x 4.3 x 1.5 cm / 2.6 x 1.7 x 0.6 inches. Charger Weight: 15g / 0.5oz Packing List: 1 x battery charger. 2 x batteries. 1 x USB charging cable