Specifications Mfr Part Number: EMPEROR HATE SI-983 Features: High-end optical engine, precise positioning Up to 2000DPI, able to choose 3 kinds of resolution from total of 5 kinds (400-800-1200-1600-2000), with DPI keys to make operation smooth and convenient 3 LED indicators to show different DPI levels Gamer-friendly rapid fire mouse button to improve game efficiency User-defined 8 programmable buttons and wheel up/ wheel down buttons On-board memory with 10 programmable buttons and 5 user profiles to be saved on mouse simultaneously, a total of 50 power keys to be programed and each key is defined from 40 options Adjustable backlighting with 6 colors to switch between single color and all color Backlignting mode: on, off, breathing Backlit scroll wheel A choice of 4 polling rates: 125, 250, 500, 1000 Hz Adjust mouse size according to hand shape and gesture Gaming driver included to build, login, save, edit, configuration file, set up profiles to apply, set up double-click interval, mouse pointer speed, swing speed, wheel speed Ergonomic design, comfortable with no fatigue Interchangeable block to adjust mouse length and weight 6666 frame per second Non-slip rubber coating A3050 high-end optical sensor 128k On-board memory Zero-acoustic ultra slick teflon mouse feet 8 MMO-optimized button Transmission Mode: Wired USB Tracking System: Optical Resolution: 2000DPI Pulling Rate: 125/250/500/1000 Hz w/ 1 ms response Max Tracking Speed: 60 inch per second; Max Acceleration: 20g Mouse Button: Number of Buttons: 8 (Include DPI /DPI-/forward/back/firepower key) Button Pressing Distance: 0.8mm Button Pressure: 65 /-5g Durability: 5 million times Working Voltage/Current: DC 5V / 150mA Supporting System: Windows ME/ 2000/ XP/ Vista/ 7/ 8 Weight System: 1x 0.05 lbs (fixed); 4x 0.003 lbs (unfixed block) Cable Length: 6.0 ft (copper anti-jamming braided fiber cord) Dimensions (WxLxH): 3.21 x 4.86 x 1.48 inch Weight: 0.31 lbs (not including any weights)