Adesso WKB-1320CB EasyTouch - Wireless Desktop Keyboard and Mouse Combo, Black

2.4 GHz Radio Frequency Wireless Technology - With 2.4 GHz RF wireless technology you can enjoy working at any angle and at a distance of up to 30 ft. Multimedia and Windows Controls - Control your media player with just one touch using the builtin Multimedia Hotkeys for easy access to your favorite video or music playlist. Instantly open your Quiet Membrane Key Switches - Membrane key switches provide a better tactile response and a quieter typing experience. Plus they last up to five million keystrokes. Optical Sensor - This wireless mouse equipped with a 1200 DPI optical sensor offers more precision, accuracy and comfort than most traditional optical mice.