Features Rechargeable 10, 000 m Ah Battery With up to 10, 000 m Ah of battery, this power bank provides several times extra battery life to your phone or tablet. Fully recharged in about 5.5 hours with the included Micro-USB cable. Detachable Lightning Cable Micro-USB Cable Apple MFi certified Lightning cable & the Micro-USB cable are detachable & interchangeable. Either of them can be attached to the power bank for easy storage. Fast Charging Speed Dual USB (Universal Serial Bus) ports (output up to 2.1A & 1A, respectively) enable you to charge two devices simultaneously with a total output current of up to 3.1A. Compatible with most smartphones or other mobile devices with a Micro-USB port or Lightning port. Superior Component Adopt high quality lithium polymer battery & premium circuitry to ensure superior performance & reliability. Safe & Reliable Short-circuit, over-charging, over-discharging, overheating, over-voltage & over-current protection keeps you & your devices safe. Integrated 4 LEDs indicate the battery level & charging status. Ultra-Slim & Portable Incredibly compact, slim & lightweight design makes it easy to carry. It can be easily put into your wallet, pocket & bag.