Samsung OEM Battery Charging System Including 1850mA Battery Compatible with Samsung Galaxy Nexus, Galaxy S II Skyrocket, Samsung Galaxy S II T-Mobile Battery Charging System is a compact charging and carrying case for your spare battery The Micro USB travel adapter also charges Micro USB compatible mobile phones It converts to a convenient media viewing stand so you can watch videos and movies in portrait or landscape mode Battery charger, Micro USB charging cable, standard 1850 mAh battery and user guide are included 12 month limited warranty