Presentation Remotes and Laser Pointers

Receiver, Bluetooth or radio: how it connects

Most clickers use a 2.4 GHz radio link and a small USB receiver that you plug into the presenting computer; it needs no pairing and works on any machine with a free port. Bluetooth models skip the dongle, which suits laptops with few ports, but pairing on a borrowed or locked-down computer can be awkward. USB-C receivers suit slim laptops. Quoted ranges, from about 20 to 100 metres, are line-of-sight figures, so a real room gives less.

Laser colour, power and the buttons you need

The remote usually acts as a keyboard, sending next and previous slide keys, so it works with PowerPoint, Keynote and Google Slides without drivers. Look for the extras you will use: a blank-screen button, a timer that vibrates, or cursor control. Power comes from AAA batteries or a rechargeable cell. Red lasers are common; green appears brighter in a lit room. Presenter lasers are low power, a few milliwatts at most, and must never be pointed at eyes; high-power pointers are hazardous.

Questions about Presentation Remotes and Laser Pointers

Will a presentation remote work with a Mac or Google Slides?

Most send simple next and previous slide keys, so they work with PowerPoint, Keynote and Google Slides on Windows and macOS. Extra functions such as cursor control or timers may need a driver or an app.

What is the real range of a 100 m remote?

Quoted ranges are measured in open, line-of-sight conditions. In a real room with walls and people, expect less. A range of 20 to 30 metres is plenty for most meeting rooms; large halls justify more.

Is it safe to use a laser pointer?

Presenter lasers are low power, a few milliwatts at most, but you should still never aim at eyes, mirrors or vehicles. Pointers rated in hundreds of milliwatts are hazardous and not meant for presenting.