LifeCHARGE InAir Samsung Galaxy S4 i9500 Slim Protective Battery Case Cover with Wireless Charging Technology - Retail Packaging - White/Silver Life CHARGE InAir 2000 mAh battery case is slim in appearance with supercharging capabilities - double the battery boost giving 8-10 extra hours of talk time Life CHARGE InAir is designed to fit your Samsung S4 like a glove, but leaves microphone, connector, touch slots, power indicators, switch and speaker fully accessible 2-in-1 charging capability to charge wirelessly or directly with the InAir battery case No cords, wires or USB cables to get in the way Minimum rated talk time - 10 hours/Minimum rated standby time - 270 hours