Luxebell Power Battery 2pack and Dual Charger with USB Cable for Gopro Hero 4 Black Silver and AHDBT-401 New Lithium Polymer (Li-Po) batteries with Japanese cells. Dual Channel,Charging two Hero4 batteries at the same time. LED charge indicator signifies. Includes two batteries and dual charger with usb cable. Compatible with the HERO4 Black and HERO4 Silver Edition.