Long Battery Life; Maximum 4000 DPI for 4K/8K monitors; Ergonomic Design for Comfortable Grip Communication: Wireless -2.4 GHz Range of Frequencies: 2400 MHz–2483.5 MHz Maximum RF 4 dBm of output power (conducted) Operating Range: 49.2 feet/15 meters (no blocking) 800/1200/1600/2000/4000 DPI (Sensitivity) Operating Current: 40mA = Operating Voltage: 1.5V Windows 7/8.1/10/11\Compatible Systems\Linux\Chrome OS\macOS 10.5 or later Temperature range for operation: -5°C to 40°C/23°F to 104°F Storage Temperature: 14°F to 140°F (-10°C to 60°C)