Perfect Choice PC-044598. Device interface: RF Wireless, Purpose: office, Movement resolution: 1480 DPI. Frequency range: 2.4 GHz, Wireless range: 10 m. Wireless receiver interface: USB, Receiver type: nano. Power source: batteries, Battery type: AAA. Mouse dimensions (WxDxH): 63 x 100 x 32 mm, Mouse weight: 59 g, Receiver dimensions (WxDxH): 13 x 18 x 7 mm