Specification:System Support: Windows 2000/XP/Vista/7/8/10, Linux / MacInterface Type: USBSize: 126*68*40mmKey number: 4Resolution: 800-1200-1600-2400DPIVoltage: 5.0VKeystroke life: 3,000,000 timesCable length: 1.5mNote: In order to protect the mouse, please don`t use the mouse on rough surface..