Charge your devices on the go. The 10,000mAh Rechargeable Backup Battery provides 7 full charges to your smartphone. 43 hours of talk and video. 200 hours of music. 2 USB ports that allow you to charge 2 devices at the same time. Works with most USB devices including smartphones, tablets, MP3 players and more. 3.1 amp dual USB output simultaneously charges your smartphone and tablet as fast as possible. LED status indicator light. Includes a micro USB charging cable.