HP x4000 Wireless Mouse (Linen White) with Laser Sensor. Device interface: RF Wireless, Movement detection technology: Laser, Purpose: office. Frequency range: 2.4 GHz, Wireless range: 10 m. Wireless receiver interface: USB, Receiver type: nano. Power source: batteries. Mouse dimensions (WxDxH): 107 x 67 x 38.6 mm, Mouse weight: 122 g