100% brand new and high quality guaranteed Mini USB receiver, Plug and play Material: ABS Interface: USB 2.0 Cars shape, comfortable touch Wireless transmission, the longest sensing distance up to 10meters Portable and weight light, very convenient to carry and store Power switch for save power With 3 Keys, including Scroll Wheel, Page Forward and Page Backward buttons for easy Internet Surfing Up to 10 meters of operating distance Adjustable DPI:800-1600DPI Suitable for computer systems: Windows 8 windows 7 vista windows XP windows 2000 MAC windows 98.windows10 Power Supply: 2 x AAA Battery(Not included) Mouse type: Wireless Optical Mouse Size:100*5.5*3.5MM Package include: 1 x 2.4GHz Wireless Mouse 1 x USB Receiver