Riin 3200mAh Battery Charging Case, portable battery charger Case with PU Leather Protect Case Cover for Samsung Galaxy S4 I9500 SIV (Black) Capacity: 3200mah Compact size design makes it easy to carry with, just press the switch button to charge your S4 at any time. Easy installation and removal, 360 Protective and powerful Stand clip, flip cover to protect the screen. Long cycle life, Rapid charge, Safe and reliable, perfect for using on travelling and outdoor activities.