High capacity！20000mah Romoss 20000mah Power bank external battery for iPhone 5 4S / Samsung Note3 S4 S5 9300 / HTC 

High Capacity - Long Lasting:
   - Capacity: 20000mAh
   - Type: Lithium ion (Li-Ion)
   - Input Charging Time ~6 hrs (charger via PC-USB)
   - Suitable for all Digital Devices with DC-5V Input
   - Life Cycle > recharge 500 Times (about 3 years)
   - Charging via USB or power adapter (NOT included)
   - Remaining power display
   - with LED flash light
   - Input: DC 5V / 3 A Max
   - Output: DC 5V / 2.1A Max

Battery Life Extension on Mobile Phones:
   - 500~600% of Mobile Phones' insided battery.
   - 60 hours Talk time
   - 160 hours audio time