Suitable for Tablet PC & Laptop & Desktop computerUSB PORT, USB receiver is includedFOUR GROUP DPI:400,600,800,100Built-in rechargeable batteryCharging time: 3-4 hours (USB charging cable is included)
Description£º Plug and Play, easy to install Wireless, With trackball, cool Press then apper laser pointer for presentation Off table and without limitation of operational space Scrolling function can be controlled simply by your thumb USB 2.0 interface, plug and play, no software required.
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