mophie Juice Pack for Samsung Galaxy S6 (3,300mAh) - Gold Impact Isolation System Carefully-designed internal bumpers add extra cushion to the edges and corners of the protective case for unrivaled support Pass Through Charge & Sync Provides power to your Galaxy S6 rest before the juice pack starts to recharge. Industry Leading Battery Life mophie batteries hold their charge longer than other external batteries. Standby Switch Toggle between charging and standby with the imp of a switch. Talk Time: Up to additional 21 hours on 3G, Web Browsing: Up to additional 10 hours on 3G, Music Playback Up to 67 hours, Video Playback: Up to 13 hours