100% brand new and high quality This is a Adjustable 2400 DPI High quality wire material, the black & blue braided wire strong anti-interference and Ultra-strong durable Gaming adjustment, Comfortable feeling .To give you a better game operating feeling Ultra-precise scroll wheel and Strong anti-interference Ergonomically designed, long-term use Comfortable feeling, Relieve tired Specifications : Buttons: 6 buttons with scroll wheel Monitoring systems: optical . Adjustable DPI Switch: 1000DPI/1600DPI/2400DPIThe Max DPI: 2400DPICompatible with : Windows XP, vista, windows 7, 8, 10.