Razer HyperSpeed Wireless Gen-2, Wired Additional Features 45K Optical Sensor, Dynamic Sensitivity, Ergonomic Design, Optical Scroll Wheel, True 8000 Hz Wired & Wireless Polling, Up To 150 Hr Battery Movement Detection Optical Button Quantity 6 Hand Orientation Right Compatible Devices Personal Computer Operating System Windows, macOS Battery Average Life 150 Hours Number of Batteries 1 Nonstandard Battery batteries required. (included) Hardware Platform Mac, PC Power Source Battery Powered Mouse Maximum Sensitivity 40000 Dots per Inch