Product Detail Information This RF wireless keyboard with the combination of radio wireless wheel mouse will provide the cordless convenience that you will really appreciate . Equipedd with reliable digital reliable radio technology . this wireless keyboard and mouse can be used at any tangle to the receiver . you'll never have to point the device to the receiver . Even if your PC is under the desk or out of sight , the device can work perfectly .To maximize the battery life , the device will shut off automatically and go into sleep mode after 30 seconds of idless . Keyboard : 105/106/ keys basic enhanced Windows layout Provide 9 Internet/Media hot key. Multimadia control center provides one touch enjoyment of music or video slim four rubber coating design suitable for your desktop notebook type key depth with generous desktop size key spacing soft-touth keys are a great comfort to your fingers for daily typing windows enhanced keyboard compatibale with windows NT/95/98/ME/2000/XP Multiple language version available 3V DC, two AA batteries Power consumption: 35 mA Dimensions: 455 x190 x 22 mm Use Range: Works up to 6 feet away from the receive Provide 15 Internet/Media hot key. Mouse: Power consumption: 35 mA Dimensions: 455(L) x190 (W )x 22 (H) mm Use Range: Works up to 4 feet away from the receiver 3V DC, 3 AAA batteries. 3 buttons + 1 wheel, 400 dpi hardware high resolution ( 800dpi ) Power consumption: 45 mA Receiver: Receiver LED indicator: will flash during mouse operation or keyboard operation. Dimensions: 103 x 69 x 15 mm Interface: PS2 &USB+ps2 System Requirement: IBM or Compatible, Windows 95, 98, NT4.0, ME, 2000, XP