Perfect Choice PC-044574. Device interface: RF Wireless, Movement detection technology: Optical, Purpose: office. Frequency range: 2.4 GHz, Wireless range: 6 m. Wireless receiver interface: USB, Receiver type: nano. Power source: batteries, Battery type: AA, Current consumption: 25 mA. Mouse dimensions (WxDxH): 62 x 82 x 32 mm