Aukey 3300mAh Aluminum Alloy Portable External Battery Charger Smartphones - Retail Packaging - Silver Unique futuristic looking, premium Zinc alloy metal casing Adds 7 hours of talk time or 70 hours of music playback to most smartphones, charge iPhone 6 one and half times or Galaxy S5 once Portable chocolate bar sized charger, easy to carry in your handbag, backpack or pocket High quality internal cells provides 500+ reliable charging / discharging cycles Package Content: Aukey Zinc Alloy 3300 mAh External Battery Charger, USB charging cable, User manual, 18 Month worry-free warranty