Feature:1. Ergonomic Design: This wireless mouse features ergonomic design that to perfectly match the position of each of your fingers, relieve the hand fatigue after long time using.2. 2.4G Wireless: This office mouse adopts 2.4GHz wireless technology and USB receiver, maximum 10 meters transmission distance.3. Adjustable DPI: This laptop mouse provides 3 adjustable DPI(800, 1600, 2400), providing accurate and stable control, greatly improving your work efficiency.4. Classic Design: This silent and ultra slim mouse adopts classic design and silent button. Powered by 1 AA battery which can last 15 months battery life.5. Strong Compatibility: This wireless mouse is suitable for Win 98, for Me, for Win 2000, for Win XP, for Vista, for Win 7, for Win 8, for Win 10, for OS X or latest version.Specification:Item Type: Wireless MouseMaterial: ABSResolution: 800/160/2400 DPIWireless Range: 10 MetersButton Life: 10 Million TimesOperation Mode: PhotoelectricBattery: AA x 1(Battery Not Included)Keys: 4 Keys (Left, Right, Roller and DPI Keys)System Requirements: Suitable for Win 98, for Me, for Win 2000, for Win XP, for Vista, for Win 7, for Win 8, for Win 10, for OS X or Latest Version.Product Size: Approx. 110 x 65 x 38mm / 4.33 x 2.56 x 1.50in ( Manual Measurement, Slight Error May Exist ).Package List:1 xWireless Mouse1 x USB Receiver