iogear Long Range Mobile Desktop. Device interface: RF Wireless, Keyboard layout: QWERTY. Movement resolution: 800 DPI, Movement detection technology: Optical. Frequency band: 2.4 GHz, Wireless range: 10 m. Keyboard dimensions (WxDxH): 184.5 x 466.5 x 24.5 mm, Keyboard weight: 1800 g, Mouse dimensions (WxDxH): 70 x 118 x 40 mm. Battery type: AAA/AA NiMH