Specifications: 1：Product model:X400 Mechanical Macros Define the game mouse 2：100% new mouse game 3：High-end brand mechanical macro definition gaming mouse 4：Human body engineering design 5：7 programmable keys (Left Button / Mid Button / Right Button / Forward / Back / DPI - / DPI +) 6：Cool LED variable light effect 7：4-level adjustable DPI, Max. 3200 DPI(1200/1600/2400/3200DPI) 8: Voltage rating / electric current: DC 5V / 100mA 9：USB plug and play 10：Switch life：20million cycle 11:Cable length: 150cm 12 :Item Weight:157g 13:Item Size：138*85*43MM(L * W * H) 14 :Package Weight:225g 15 :Package Size:159*121*47MM 16:Support?Windows?2000?/?XP?/?win7?/?win8?/win10?Vista?32bit?IOS or??latest.? The way to quickly turn on/off the breathing light: First press the side button (forward button or back button), and then press the DPI button. Press both DPI button and the side button (advance button or retreat button) at the same time. Default Key Function Description: 1：Left Button 2：Mid Button 3：Right Button 4：forward 5：Back 6：DPI loop- 7：DPI loop+ Package Including: 1X Gaming Mouse 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, "X400" 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.