Features:100% brand new and high quality.Ultra-precise Scroll WheelErgonomic shape， special feel goodProfect combination， positioning accuracyMost suitable for Laptop user and PC userFeel comfortable， mobile and stabilityColorful LED flashingSpecifications:Buttons: 3 buttons include scroll wheel.Interface Type:USBApplication:DesktopLaptopWiFi Range: 10mType: 2.4Ghz WirelessBattery: 1*1.5V AA battery(Not included)Colors: White， Pink， BlueSize: 12*6*2cm