... design 3000mAh 2.Double USB output high transfer 3.With LED Torch 4.Perfect qualit OA-0531 power bank Technical SpecificationsColorsGold/Silver ... ,UV,rubber oil print ,colors print etc.)CapacityBuilt in high quality, high working efficiency ,high safety and stability 3000mah.batterySize and ... mobile phone sereis and so on 2500mAh External Battery packs for Iphone 4/4S