iGo ac050910001. Device interface: Bluetooth, Purpose: iPad, Keyboard form factor: Mini. Bluetooth version: 2.0+EDR, Wireless range: 10 m. Keyboard dimensions (WxDxH): 232 x 132 x 7 mm, Keyboard weight: 200 g. Power source type: Battery, Battery technology: Lithium-Ion (Li-Ion), Battery life (max): 50 h