IR USB Wireless Media Desktop Computer PC Remote Control Media Center Controller With Wireless Mouse Function USB interface, plug and play, no need to install other drivers Receiver and computer through the USB interface to connect Using a wireless infrared remote control technology The application of software: Microsoft Media Center Work distance:10M (depend on user environment) Work degree: can control the angle of 200 degrees Compatible Windows 2000 XP MCE2005 Vista Windows 7 Power supply: 2 AAA battery-powered ( not included ) 100% brand new. Weight: 102g Size: 18 x 5.2 x 2.cm (Approx) USB cable length: 56cm Install: Insert USB receiver into the computer's USB interface, the system will automatically install that its driver (driver is a system built-in) Open the remote control behind the battery cover, then put into two new AAA batteries Specification: Transfer method: infrared Wavelength:940nm Remote control distance:10M Receive mode: USB, plug and play Package Content: 1 x PC Remote Controller 1 x USB Infrared Receiver 1 x USB Extension Cable 1 x User Manual