This low profile design from Mophie provides more than 120% extra battery for an iPhone 6, allowing you to power through just about any situation, while the hard exterior shellalong with a proprietary impact isolation system protects the phone from heavy impacts and hard falls. Highly advanced protective case delivers a quick charge with more than 120% extra battery to keep an iPhone 6 powered and protected through the busiest days or longest flights. Impact isolation System combines Mophie's standard rubberized support pads with internal suspension bumpers lining the edges of the juice pack case for even greater protection against shocks and falls. Carefully designed internal bumpers add extra cushion to the edges and corners of the protective case for unrivaled support. Priority Charge Sync Enables pass through charge sync while connected to a computer. The iPhone 6 recharges first, and then the juice pack case recharges itself. Integrated standby switch allows you to choose when to charge or save some juice for when you need it most. LED power indicator displays the juice pack battery levels and charge status 3,300mAh delivers more than 120% extra battery.