Adesso Wireless Mini keyboard + Cursor Pad. Device interface: RF Wireless, Keyboard layout: QWERTY. Frequency band: 0.056 GHz, Wireless range: 7 m. Keyboard dimensions (WxDxH): 167.64 x 337.8 x 28 mm, Keyboard weight: 0.72 kg. Battery type: AA/DC, Current consumption: 250 mA. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -10 - 60 °C, Operating relative humidity range: 10 - 85 %