5M clicks button lifetime

The premium offer guarantees more than 5 million clicks. 1000 DPI Guaranteed smooth and accurate tracking anywhere, even with furry textiles. Throw away the mouse pad! Dust-proof wheel Dust-resistant construction extends the life of the wheels. 8 in one 8 gestures to perform optional key commands. 4 way wheel Smart horizontal and vertical scrolling. Model: OP-720 Type: Wired Ergonomic design: symmetrical Sensor: optical Resolution: 1000 DPI Buttons No.: 3 Port: USB or PS2 Cable length: 150 cm System Requirements: Windows XP / Vista / 7/8 / 8.1 / 10