These devices are very common. They send data signals each time a button is pressed using infrared light or radio signals.

The signals can control a computer (or a system that contains a small computer such as a DVD player) from some distance.

Often used to control a presentation slideshow.
Stacks Image 1585

Sorry to ask you this, but...


This site took quite a bit of time and effort to create, and it costs me money to keep it up and running. If the site has helped you, please consider showing your appreciation by donating a little towards the site's running costs.

Thank you!

Sponsored Links...