REMOTE CONTROLS

Remote controls are devices that operate other electronic devices from a distance, typically wirelessly, using signals like infrared or radio frequency. They are commonly used for consumer electronics like televisions, DVD players, and home media systems, as well as for garage door openers and other automated devices. Modern remote controls can also be virtual, turning a smartphone into a remote control through an app.  

When you press a button, the remote sends a coded message to the target device. They use different types of signals. Infrared (IR) uses light signals to communicate. It's the most common type for consumer electronics, but the line of sight must be clear. Radio Frequency (RF) uses radio waves, which can pass through walls and obstacles, making them ideal for garage door openers and some home entertainment systems. Bluetooth pairs with devices via Bluetooth, offering a reliable connection and used in some smart TVs and streaming remotes.