Stin Jolt Box 3.0 10,000mAh 3.1A Output Universal Portable Power Bank - Black EXCLUSIVE SMART PORT TECHNOLOGY: Exclusive to Stin, it will intelligently detect your device, and deliver the fastest charge possible. Speed up to 3.1 amps MULTIPLE SAFETY PROTECTION: The circuit design is that multiple safety protection, using a grade A Li-ion polymer cell and premium microchips for reduced weight and increased safety. Secured battery safety with 4 layers of smart safety protection circuit; advanced power lock technology with standby time up to 6 months after fully charged. 500+ recharge cycles over the life of the battery. ULTRA-HIGH CAPACITY: Portable battery pack with dual USB port with 10,000 mAh capacity. Charges the iPad Air almost once, the Galaxy S5 two and a half times, the iPhone 5s four and a half times and other smartphones multiple times. Entirely Compact: Fits easily into any bag or pocket; Compact, portable & stylish design; Easily fits into your bag to provide instant power; Perfect for long flights, road trips, or whenever you need to charge your mobile devices; often used as a substitute for a car charger, such as an iPhone car charger, dual USB car charger and iPad car charger. PREMIUM PERFORMANCE: Constructed with industry grade materials, premium circuitry, and a 92% efficient battery cell (10% above industry standard) ensures complete reliability for every user. Portable battery charger 3 LED indicators to show the charging and discharging status. For best results, use the cable that came with your device or use a cable that has been certified to work with your device.