Microsoft Arc Mouse Special Edition. Device interface: RF Wireless, Movement detection technology: Laser. Frequency range: 2.4 GHz, Wireless range: 10 m. Battery technology: Alkaline, Battery type: AAA. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -40 - 60 °C. Minimum hard disk space: 100 MB