Special Suit for Gopro Hero 3 / 3+ /AHDBT-301/AHDBT302 camera batteries charging. --Quick charge with automatic constant current control prevents battery from overcharging, --Short circuit, and electronic shock. Specification: Input voltage: AC100V~240V 50-60Hz max150mA Output voltage: DC 4.2 卤 0.5V, 600mA Dimension: 8.5cm x 3.5cm x 3.5cm Compatible Battery: GoPro HD Hero 3 Hero3 AHDBT-301 /302 /201 Plug: US Standard Package Includes: 1 x Wall Charger (US plug)Unbranded/Generic