Work or play in more places. The wireless connection virtually eliminates delays, dropouts and interference and gives you a range of up to 10-meters range. Take the mouse with you. This comfortable mouse fits easily into computer bags and pocket to travel with your computer. A 24-month keyboard and 12-month mouse battery life - plus on/off switches - means you can go for months without the hassle of changing batteries. Instant access to media controls - movies, music, Internet, e-mail, play/pause, volume and more - are one touch away. The full-size keyboard with number pad, directional keys, and nine F-keys is comfortable, convenient and built to last.