TECHNICAL SPECIFICATIONS  Connection type: Bluetooth Smart and 2.4GHz wireless connection    Wireless range: 10 m*  * It may vary based on use and computing conditions.  Battery details: 1 x AA    Battery life: 2 years*  * It may vary based on use and computing conditions.  Sensor technology: Logitech Advanced Optical Tracking    Sensor resolution: 1000 dpi    Scroll Wheel: Yes    Number of buttons: 7    Standard and Special buttons: Tilt wheel with middle click, Easy Switch    Gesture Support (Windows): Yes    Gesture Support (Mac): Yes    Optional software: Logitech Options and Logitech Flow    WARRANTY