With the Logitech R800 professional presenter, keep track of time, battery and wireless reception with a quick glance at this presenter's built in LCD display. Ability to navigate larger rooms and engage the audience with mobile 100 foot wireless range. Intuitive display and slideshow controls help you present with confidence. Once done conveniently store the receiver inside the presenter. Includes protective carrying case. Projection Distance: 100 ft; Operating System Compatibility: Windows® XP, Vista, 7, 8; Laser Class Type: 2; Presenter Type: Remote with Laser Pointer.