SPECIFICATIONS: Interface: USB Number of buttons: 6 Key lifeup to 5 million Resolution: up to 3600 DPI Measurement: 122x70x42mm Net weight:115~120g Working Temperature£º0¡æ-40¡æ Working Humidity£º10%-90% Working Voltage£º5V Cable length£º150cm Compatible Operating Systems: Win VISTA/ 7/ 8/ 10 and Mac OSX 10.2 1 Year Imperion Warranty