This is a USB charger that holds two batteries, and will charge them simultaneously. It is designed to draw USB bus power from most USB power sources, including USB wall adapters, computers, the GoPro Auto Charger, and the GoPro Wall Charger. Dual orange and green LED lights indicate the charge status of each battery.

• Conveniently charges two HERO4 camera batteries simultaneously
• Can be powered with most standard USB power adapters, the GoPro Auto or Wall Charger, or a computer
• Dual LED lights display charging status of both batteries
• Allows you to charge your spare batteries while you use your camera
• Includes a spare 1160mAh lithium-ion rechargeable battery for your HERO4 camera