4G Dual Sensor System Experience a new standard of gaming precision with the 6400dpi 4G Dual Sensor System, outfitted with a laser & an optical sensor to accurately calibrate the mouse to any surface for exceptional tracking. The Razer Imperator can not only match the speed of your swipes, no matter the play style, but also has adjustable liftoff tracking distance, empowering you with more control than ever. Rubberized contoured thumb grip for maximum control The contoured thumb grip on the Razer Imperator has been rubberized to give added control, a must for low sensitivity gamers who need to lift & swipe their mouse for victory. Ergonomic right-handed form factor The Razer Imperator’s right-handed ergonomic form factor maximizes comfort during intense & extended gameplay so you can outlast & outfrag the competition. TECH SPECS 6400dpi 4G Dual Sensor System Rubberized contoured thumb grip for added control Ergonomic right-handed design Adjustable side buttons Razer Synapse Onboard Memory Up to 200 inches per second* /50g acceleration Seven independently programmable Hyperesponse buttons On-the-Fly Sensitivity adjustment Zero-acoustic Ultraslick mouse feet Approximate Size: 123 mm / 4.85” (Length) x 70 mm / 2.76” (Width) x 43 mm / 1.69” (Height) Approximate Weight: 139 g / 0.31 lbs System Requirements PC / Mac with USB (Universal Serial Bus) port Windows 8/ Windows 7 / Windows Vista / Windows XP (32-bit)/ Mac OS X (v 10.6-10.7) Internet connection (for driver installation) At least 35MB of hard disk space