Expert Features Consistent Wireless Stability : Advanced 2.4GHz powerful wireless connection with distance up to 10-15m. Auto-Channel stablizing Plug and leave-in nano receiver provides essentially no delays or connection conflicts. Up to 12 Months Battery Life : Go longer between battery changes with energy efficient engineering. Extreme quality offer over 12 months lifetime guaranteed. Smart Wireless SOC Technology : Professional chip ensures longer distance and stabler connection. Auto Power Saving : Auto 4-level power saving. It will be in sleep mode in 0.2s of inactivity. 16-in-One : 16 gestures to perform selectable hotkey commands. EXPERT SPECIFICATIONS Model:G3-760N Name: Energy-saving Wireless Mouse Type: Wireless Connection: 2.4G Hz Ergonomic Design: Symmetric Sensor: Optical Resolution: 1200 DPI Report Rate: 125Hz Buttons No.: 3 Receiver: Nano USB Receiver Power Source: 1AA Alkaline Battery Net Weight:91 g (w/ battery) System Requirements: Windows XP / Vista / 7 / 8 / 8.1 / 10