Kensington Wireless Presenter Without Laser Black

USB enabled. Plug the wireless receiver in and start using straight away. Intuitive four-button layout lets you easily go forward and back on your PowerPoint or Keynote slides, while the other two buttons let you hide your screen and play a PowerPoint slideshow. Range of up to 19 metres. Laser-free design is an ideal solution for locations where laser devices are not permitted. Roam the room with ease during your presentation. Battery compartment also provides a handy internal storage space for the wireless USB nano receiver when not in use. Each receiver and presenter are uniquely paired to prevent interference. Compatible for use with Windows 7 and 8, Vista, XP and Mac OS X. On/off switch lets you turn the presenter off to conserve battery power when not in use.