... Lithium Rechargeable battery Color: Black 1 year guararantee Bluetooth Keyboard With Aluminum Case *Chipset: Broadcom 2042 Chipset* Frequency band: 2.4 - 2 ... 510mAh Li- battery* Power : Charges by USB*Aircraft-grade aluminum with a bead-blasted*Military grade high-density padding for superior ... music control, volume control, slideshow, home, search, etc. Bluetooth Keyboard With Aluminum Case