Ultron 90836. Device interface: Wi-Fi, Movement detection technology: Optical, Movement resolution: 1600 DPI. Frequency band: 2.4 GHz, Wireless range: 10 m. Wireless receiver interface: USB, Receiver type: nano. Mouse weight: 0.104 kg. Compatible operating systems: Windows XP / Vista / Windows 7, Mouse dimensions (WxDxH): 72 x 112 x 40 mm, Package dimensions (WxDxH): 180 x 80 x 220 mm