The mouse is wireless, which is convenient to use.Wireless transmission space can reach 10 meters.It is lightweight and portable, which is very convenient to carry.The wireless mouse is connected by a USB receiver.It is an ideal companion for laptops in the home or office.Item Name: Wireless MouseMaterial: ABSDPI: 800/1200/1600dpiWireless Transmission Space: 0-10m/0-393.7" (Approx.)Compatible Systems: For Windows 98 SE/SME/2000/SXP/2003, for Mac OSInterface: USBBattery: 1 x AA Battery (Included)Wireless Transmission Frequency: 2.4GHzFeatures: Wireless, Convenient to Use, PortableSize: 13.8cm x 8cm x 3.9cm/5.43" x 3.15" x 1.54" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Wireless Mouse1 x Receiver1 x AA Battery1 x User Manual