Frisby MK54696G. Device interface: RF Wireless, Purpose: PC, Recommended usage: Home. Movement resolution: 1000 DPI, Movement detection technology: Optical, Scroll type: Wheel. Frequency band: 2.4 GHz, Wireless range: 10 m. Wireless receiver interface: USB. Keyboard dimensions (WxDxH): 464 x 145 x 23 mm, Mouse dimensions (WxDxH): 122 x 66 x 38 mm, Receiver dimensions (WxDxH): 42 x 14.5 x 7 mm