Specification:1. Brand: MOYUKAXIE2. Model: S4003. Color: Green, Red4. DPI: 1200/1600/2000/2400/3200DPI5. Switch life: 10million cycle6. Cable length: 140cm7. Item Weight:  147g8. Item Size:  128*73*42MM(L * W * H)9. Support: Windows 2000 / XP / win7 / win8 /win10 Vista 32bit IOS or  latest.  10. Voltage rating / electric current:   DC 5V / 100mAFeatures:1. Human body engineering design, Support both left hand and right hand to play the mouse2. Four-color back-light design, default lighting colors fro each level of DPI. Blue for 1200DPI, pink for 1600DPI, red for 2400DPI, purple for 3200DPI.3. Five levels of DPI: There are defaulted four levels of adjustable DPI, 1200/1600/2400/3200DPI. Yet, you can set it to 2000DPI through the macro definition software.  4. 7 programmable keys:  When used by your left hand, the side keys are not required to reset for it is defaulted for  forward-and-backward function. You just need to switch left key and right function via macro definition software.   (The mouse has 9 buttons, two non-programmable keys, with default forward-and-backward function.)The way to quickly turn on/off the breathing light:First press the side button (forward button or back button, left and right sides of the side buttons can be used), and then press the DPI button.  Press the DPI button and the side button (the feed button or the retract button) at the same time so that the light can be turned off or on, which is simple and easy.   The custom driver download and use:1.    Insert the driver CD to computer, and run the "setup.   exe" installer.   2.    The installation can be started when the mouse is successfully connected and in normal use.   3.    When the installation is completed, "S400" drive icon appears on the desktop.   4.    Basic Setting, Advanced Settings, Breathing LED Settings available.   5.    In Basic Setting, custom settings are supported in drop-down list of each button.   6.    In Advanced Setting, the macro editing is supported and the macro catalog can be added or deleted.   7.    In Breathing LED Setting, long light, light-off and change of DPI defined light are supported.    8.    When settings done, click Application, and click Save the Configuration.    You should boot the driver again when next use so that all the self-defined functions can be used.  Packing Included:1 * MOYUKAXIE S400 3200dpi Adjustable USB Wired LED Backlit Gaming Mouse