A TV remote control is a handheld device used to operate a television from a distance. It typically features buttons for power, volume, channel selection, and other functions, allowing users to change settings without getting up. Most remotes use infrared signals to communicate with the TV. Modern remote controls may also include features like programmable buttons, backlighting, and voice control. Some remotes can operate multiple devices, such as DVD players or sound systems, making them versatile tools for home entertainment. They are powered by batteries, which need to be replaced periodically.