Intuitive 4-button design for scrolling back and forth, hiding the screen and playing a slide show - Laser-free device - 20 metre range without cables - USB receiver can be safely stored in the housing - Plug <(>&<)> play operation through 2.4GHz USB connection - Compatible with Windows 10, 8.1, 8, 7 and Mac OS X - USB plug <(>&<)>...play - Compatible with PC and Mac - As it does not use a laser, this presenter is ideal for air travel and other environments where lasers are not permitted - Battery indicator light for monitoring - Requires 2 x AAA batteries (included) - Stylish design in matt black