Specification： 1. Input: Micro USB/DC 5V/2A 2. Output: 5V 1A (built in cable) 5V 2A (USB port) ≥31.5wh 3. Built-in battery capacities: 3.7V/10000mAh 37wh 4. Battery Type: 18650 lithium-ion battery 5. Fully Charge: 4-7 hours 6. Working Temperature： -10°C to 45°C 7. Standby times: >5000hrs 8. Cycle life of charging: 500 times (1 time = from 0% to 100%) 9. Net Weight: 288g 10. Size: 131*78.5*22mm Features: 1. (Dual utput) Built in micro USB cable and 1 USB port output. 2. Compatible for any phone， tablet， MP3， MP4， PSP， GPS， game device， camera and many more (just connect with your USB cable). 3. LED display (display battery percentage， in / out charging status). 4. Intelligent voltage recognition chip automatically detects the voltage. 5. Built in battery protection IC to prevent over charging， over discharging and short circuit.