Product parameters:Product model: V100-2 + H300Product interface: USB 2.0Press the number key: 35 keyCritical life: 20 million timesProduct line length: 1.4mFlash ROM: 32 bytesEEPROM: Built-in 2K bytesOperating voltage: VDD = 3.3V-5.5VWorking current: 100mAAmbient temperature: -40 C - + 85 CProgramming temperature: 0C-+ 85CProduct net weight: 290gProduct size: 26 * 18 * 4cmPrecautions: If the keyboard does not work properly, please check your computer's PS/2 or USB.The connector is OK or the keyboard cable is broken. Avoid using the mouse and keyboard in a hot, hot or dusty environment.mouse:The 7 colors of breathing light give the user a cool gaming experience.Seven buttons provide more convenient operation and the fire button can perform triple attacks. The two-color woven nylon thread is equipped with an anti-static electromagnetic ring for durability and anti-interference. Five adjustable DPIs are available for more freedom to control. An ergonomic surface that feels comfortable and reduces fatigue.specification:Key quantity: 7Resolution: 1000DPI, 1600DPI, 2400DPI, 3200DPI, (adjustable)Critical life: 10 millionRated voltage / current: DC 5V / 100mAUSB version: 2.0Buttons: left, right, scroll wheel, DPI, fire button, forward, backwardLighting effect: colorfulCompatible: For Windows 7/8/10/2000 / XP / Vista, for Mac OS or the latest version.Color: Black RedMaterial: ABSLine length: 140cmItem size: 13.0 * 8.5 * 4.0cm (L * W * H)Product weight: 139.0 gPackage size: 33.5 * 18.5* 4.5cmPackage weight:Precautions: If the keyboard does not work properly, please check your computer's PS/2 or USB.The connector is OK or the keyboard cable is broken. Avoid using the mouse and keyboard in a strong, overheated or dusty environment