Ugreen Laser Projection/flip Pen 60327, Black, Control distance 100m, Laser distance 200m, Laser Red, Frequency 2.4Ghz, Compatible with USB 3.0, 2.0 and 1.1, O/S Windows 7/8/10, Windows XP, Linux, Mac OS, Android. UGREEN wireless presenters can enhance any presentation. With a wireless presenter, you can walk around and engage your audience directly, instead of fumbling with a keyboard or mouse, stuck in front of a computer.