The protective, yet lightweight design delivers more than 100% extra battery with the flip of a switch. Durable outer-band and rubberized support pads add to the full-case protection for extra security. Enables pass-through charge and sync while connected to a computer. Your iPhone 6s / 6 recharges first, and then the juice pack case recharges itself. It’s the ideal everyday case to keep you charged through the day and well into the night.