i-Blason PowerGlider For Samsung Galaxy S4 S 4 SIV i9500 Rechargeable External Battery S View Cover Glider Full Protection Case - AT&T, Sprint, Verizon, T-mobile (Black) i-Blason (TM) logo bearing Glider Battery Case for Samsung Galaxy S4 Smart Phone Capacity: 2,000mAh = 1 full charge providing 65% of Galaxy S4 internal battery, Input: 5V/800mA, Output: 5V/500mA Samsung Galaxy S4 compatible S-View Cover Easy Access to all Functions, Controls, Speakers and Cameras Built-in opening for headphone jack LED power indicator for battery power level, on-off power to control when to use the extra power Fully support charging and data synching via Micro 5 Pin USB cable Full body protection design for Galaxy S4 Six Month Limited Warranty from i-Blason LLC