• V-track Wireless Gaming Mouse• 160 K onboard memory• No lag technology• 20 m operating range• 7 fully programmable buttons• Acceleration: 30 G/sec• IPS speed: 75 inch/sec• Report rate: 125_250_500Hz (2 ms)• Key switch response time: 3 ms (Regular mouse: 16ms)• Sensitivity: 100~3000 CPI (5 free-adjustable levels)• Default sensitivity:400 - 800 - 1200 - 1600 - 3000 CPI