Cosmic Byte Dark Matter Gaming Keyboard and Mouse Combo, 3 Color LED Backlight, Upto 2400 DPI 5 Button LED Mouse (Black) Special featurese rgonomic gaming design.Usb interface.Four dpi transmission up to 2400dpi for mouse. Quiet and precise keystroke.High-quality membrane for keyboard. 19 keys anti-ghost.12 shortcut buttons to windows, internet, multimedia applications, etc. Installation and nbsp, connect the keyboard and mouse to an available usb port of your pc.Installation of the keyboard/mouse is automatic after its connection to a pc usb port.If the devices not working, please disconnect the devices from your pc and recheck connect usb port for possible damage. Warranty: 1 year warranty for manufacturing defects only.Warranty not applicable for tampered or physical damaged products. Technical specifications (mouse)number of buttons: 6 buttonsresolution: 800/1200/1600/2400 dpimaximum frame rate: 4000 fpsmaximal tracking speed: 30 ipsmaximum polling rate: 250 hzmaximum acceleration: 8 gwire length: 150 cmdimensions(wtimes, htimes, l) approx.: 124x71x40mm technical specifications (keyboard)q-ty of keys: 104keyboard layout: Usled: 3 color backlightq-ty of shortcut buttons: 12os compatibility: Windows xp/vista/7/8/10error-free running time: More than 10 million timesinterface: Usbwire length: 150 cmdimensions(wand times, hand times, l) approx.: 480x180x30mm