Wireless Multimedia Keyboard & Laser Mouse...Insert the mini USB receiver into your computer's USB port and you're ready to go without synching the keyboard, mouse and the receiver. 2.4 GHz frequency provides an instant and secure connection without interference from other electronic devices up to 30ft. The included software allows you to easily program 4 designated keyboard keys and 2 mouse side buttons to launch your favorite application with one touch. The one touch Office keys launch Microsoft Word, Excel, PowerPoint and calender easily. 23 internet & media launch keys provide access to the internet, e-mail and calculator as well as control your media with one touch. The 5-button wireless laser mouse glides smoothly across your desktop's surface using a 1600 dpi high performance laser sensor. The laser mouse works on most surfaces such as wood grain, frosted glass and others optical mice cannot work on. The cursor speed button adjusts the speed of your mouse's cursor to your comfort. Horizontal and vertical scrolling allows you to navigate through web pages and documents from top to bottom or left to right. Never run out of battery, the LED low battery indicator will warn you when its time to replace them.