Main Features‎:‎● Excellent ergonomic design‎,‎ better fit for your using habit● Buttons‎:‎ 4 buttons with scroll wheel● Tracking systems‎:‎ Optical● Drawing wire equipped with strong defense magnet ring‎,‎ anti‎-interference and durable● Adjustable DPI‎:‎ Max to 2400DPI ‎(‎ 800 ‎- 1200 ‎- 1600 ‎-2400 ‎)‎● High precision‎:‎ Ultra‎-precise scroll wheel‎,‎ professional gaming chips‎,‎ high precision and rapid response● Optical technology works on most surfaces‎,‎ long‎-term use without fatigue● Intelligent connectivity‎,‎ plug and play● Switch life‎:‎ 10 million cycles● Compatible with Windows XP / Vista / 7 / 8 / ME / 2000 / Mac OS Product Brand‎:‎ RAJFOO Application‎:‎ Desktop‎,‎Laptop Color‎:‎ Black DPI‎:‎ 1200‎,‎1600‎,‎2400‎,‎800 Hand Orientation‎:‎ Right Interface Type‎:‎ USB Number of Buttons‎:‎ 4 Tracking Method‎:‎ Optical Type‎:‎ Wired Wrist Support‎:‎ Yes Package weight‎:‎ 0.181 kg Product Size‎(‎L x W x H‎)‎‎:‎ 12.00 x 7.00 x 3.00 cm / 4.72 x 2.76 x 1.18 inches Package Size‎(‎L x W x H‎)‎‎:‎ 18.50 x 12.50 x 4.50 cm / 7.28 x 4.92 x 1.77 inches Package Contents‎:‎ 1 x RAJFOO I5 Wired Optical Backlight Gaming Mouse