TOP Quality Wireless Removable Bluetooth Keyboard Leather Flip Folio Case Cover for Samsung Galaxy S4 SIV i9500. Latest Wireless Bluetooth Detachable Keyboard + Leather Portfolio Case for Galaxy S IV GT-I9500 Bulit-in wireless Bluetooth 3.0 PLASTIC keyboard--Superb tactile Keyboard get your typing and texting extremly easy! Famous Brand Broadcom Bluetooth V3.0 interface Standard. Operating Distance:10 meters GT-I9500 home screen key for one touch access to variety of apps. Key Life: 5 million strokes Elegant and strong protection, display stander for easy viewing. Energy saving keyboard sleep mode. Built-in rechargeable Lithium battery. Standby time: 30 days. Uninterrupted working time: 30 hours.