??High precision resolution up to 4000 DPI£¬ and 5 level DPI: 500/1000/2000/3000/4000DPI(programmable)£¬ each with a dedicated light color for quick identification.8 programmable buttons to set a best mouse for yourself.Customizable weight system of an 8-piece weight tuning set(2.4g * 8)£¬ so you can adjust the mouse's weight to fit your comfort levels. Features: High precision resolution up to 4000 DPI£¬ and 5 level DPI: 500/1000/2000/3000/4000DPI(programmable)£¬ each with a dedicated light color for quick identification. 8 programmable buttons to set a best mouse for yourself. Comfort is paramount£¬ ergonomic design£¬ which can efficiently reduce fatigue caused by intensively long time playing. Customizable weight system of an 8-piece weight tuning set(2.4g * 8)£¬ so you can adjust the mouse's weight to fit your comfort levels. Over 16 million LED color options£¬ the color breathing rate and the brightness can also be set. Keystroke life up to 5 million times£¬ long service life. Side programmable buttons can set more than one hundred micro managements. Braided-fiber cable with gold-plated USB connector anti-interference for greatest durability and signal accuracy. Comfortable hand feel£¬ natural hand position and button layout. Metal base£¬ stable£¬ fashionable and wear resistant. One button at the bottom of the mouse for shift LED color. Specifications: Type: Wired Working mode: Optical Key quantity: 9 Programmable key quantity: 8 Highest resolution: 4000DPI Key life: 10 million times Working voltage: DC 5V ¡À 5% Working current: £¼ 100mA Rating: 5.0/100mA System support: for WinXP/7/8/Vista Color: Black£¬ white (optional) Cable length: Approx.1.8m Material: ABS Weight tuning cartridge:2.4g * 8 / 0.084oz * 8 Item size: 12.1 * 7.4 * 3.7cm / 4.76 * 2.91 * 1.45in (L * W * H) Item weight: 152g / 5.36oz Package size: 22 * 16.5 * 5cm / 8.66 * 6.49 * 1.96in (L * W * H) Package weight: 311g / 10.97oz Package List: 1 * Optical gaming mouse 1 * 8-piece weight tuning set 1 * User manual (English and Chinese) 1 * Drivers CD