Kensington K75233EU. Wireless receiver interface: USB, Wireless technology: RF, Frequency band: 2.4 GHz. Product color: Black, Presenter functions: Laser pointer, Remote control, Material: Acrylonitrile butadiene styrene (ABS). Battery technology: Alkaline, Battery type: AAA. Windows operating systems supported: Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10..., Mac operating systems supported: Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Compatible operating systems: macOS 10.13 or above; Windows 8.1; macOS 10.12 or above; macOS X 10.11; Windows 10; Windows 7. Width: 39,6 mm, Depth: 42,4 mm, Height: 111 mm