Logitech Wireless Desktop MK320 You get a full-featured keyboard and an easy-to-tote mouse, for comfortable control at home or on the go. Go long - Long-range 2.4 GHz wireless gives you a powerful, reliable connection even in the most crowded wireless environments. Go comfortably - The easy-to-carry mouse and full-size keyboard mean you?ll have the comfort and control you want?at home or one the go. Go for months - You?ll get up to 15 months of battery life for the keyboard and up to five for the mouse. Plug-and-play setup - Setup is easy. Just plug in the mini-receiver and start using your keyboard and mouse right away. It?s that simple. The batteries are pre-installed. And there?s no software installation required. Instant-access hot keys - Control videos or music and launch applications like your calculator, e-mail program, and media player.