Main Features Equipped with a 1600dpi professional gaming sensor,F1Proü|High Precision Gaming Optical Mouse is of excellent performance even in the most treacherous of gaming confrontations. High-Precision Gaming Sensor Powered by high-precision gaming optical sensor, F1Pro characterizes 1600dpi max resolution, 40inch per second max velocity, which lets you move faster when compared to a standard 800 dpi optical sensor. Free DPI Switching Technology F1Pro allows gamers to fine tune DPI values exactly to personal reaction patterns: any DPI available from 400dpi to 1600dpi which makes gamers to easily applied to different gamplay. Two Programmable Buttons F1Pro allows gamers to program their button functions so as to perform hot keysüf functions on a mouse button. UltraSlick Teflon Feet Teflon feet are durable to travel 250km long distance.Watch F1Pro glide and slide as you experience the true meaning of smooth gaming. 1000Hz Ultrapolling The fast response time of F1Pro means you never have to wait for the mouse--no matter how quick you are. Super Strong Cord Strong so that it is not easy to break, also soft and anti-entanglement so that it will not affect the mouse movement. Specificatons: - Counts per inch: 400-1600(one CPI Steps) - Inches per second: 40 - Samples per second: 6050 - Image processing: 6.4 megapixels per second - Max acceleration: 15G - Buttons: 5 (2 programmable) - Cord length: 6.5ft - Polling rate: 1000 Hz - Left/Right Button Lifetime: 5,000,000times - Net weight: 132.8g - Product size (Inch): 4.6(L)*2.6(W)*1.3(H) - Unit packaging (Inch): 10.04"(L)*3.54"(W)*12.99"(H) - Mastercarton (Inch): 21.06"(L)*19.09"(W)*14.17"(H) /10pcs - Standards: CE, RoHS, FCC, IEC60825-1,etc - Operating systems: Win XP/Vista/Win 2000/Win 98/Win ME/Mac OS Warranty: 12 months + 2 months in-transit