Bluetooth Keyboard Aluminum Case With Stand Buil-In Lithium Rechargeable battery Color: Black 1 year guararantee Bluetooth Keyboard With Aluminum Case *Chipset ... 4dbm maximum* Operating distance: 0 - 10 m* Bluetooth Version: 2.0* Battery : Built-in Rechangeable ... Bluetooth physical keyboard *Special function keys for music control, volume control, slideshow, home, search, etc. Bluetooth Keyboard With ...