Features: This product is a powerful computer remote control, it will become more convenient to listen to music, watch movies and browse websites. Remote control infrared 18M. Application: Windows 2000 and above, Windows CE, Windows XP, Windows MCE, Windows VISTA. If the remote control is not sensitive, please replace the battery in time. Model: EC0042 using computer Receiving interface: USB Interface driver: no driver required Function: wireless keyboard and mouse Support software: WMP, RealPlayer, KMPlayer, TTPlay, WinDVD, PowerDVD Number of keys: 78 Power supply: 1*CR2025 (the product does not include battery) Size: 12*5cm Application: Windaows 2000 and brove system, Windows CE/XP/MCE/VISTA Distance: 18M What's Included: 1 x Air Mouse1 x USB Receiver Products from 's store Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin