This is the Re-Fuel Go Charger with Rechargeable Power Bank Charge 2 Batteries

Features:

• The Go Charger!
• Recharge your device up to 4 times per charge
• 5,200mAh/19.2Wh
• Charge one or two GoPro Hero4 batteries at the same time
• 2amp/10watt USB output for rapid charging

Don't miss out on the perfect shot due to a dead battery! Always have portable, rechargeable power at hand with this awesome power bank from Re-Fuel.