mophie juice pack for Samsung Galaxy S7 Edge (3,300mAh) - Black Provides up to 60% extra battery. Talk time: up to 13 additional hours, audio playback: up to 40 additional hours, video playback: up to 11 additional hours, Internet usage: up to 5 additional hours. High impact protection (level 2) featuring rubberized support points that enhance edge-to-edge protection while still fitting securely and comfortably in your hand. Powerful 3,300Mah rechargeable lithium-ion polymer battery Priority+ charge and sync enables pass-through charge & sync while connected to a computer. Your Galaxy S7 edge recharges First, and then the Juice Pack case recharges itself. Pass-through volume and power Buttons deliver a high-quality premium feel.