AHDBT-401, AHDBT401 3 Bay-Battery Charger For GoPro HD HERO4 + Cleaning Cloth An Essential Accessory For For The GoPro HD HERO4 High quality battery charger is a handy companion for digital shooting. Charger is designed with a foldable A/C plug that charges your camera battery anywhere in the world. Quick charge with automatic constant current control prevents battery from overcharging, short circuit, and electronic shock. Smart LED indicator shows charging status. Specifications: A/C power supply input voltage: AC100V~240V; Output voltage: DC 3.7v 600mA this package includes 3-Bay Battery Charger, Cleaning Cloth and LCD Screen Protectors.