remote
n. countablen. a small device you hold in your hand to control a machine from a distance. You use it to change channels on a TV or open a garage door.
n. a handheld electronic device used to operate another piece of equipment from a distance. Often used as a clipped form of 'remote control'.
I can't find the remote to change the channel.
The hotel guest used the remote to adjust the air conditioning without getting out of bed.
While modern smartphones can function as universal controllers, most users still prefer the tactile feedback of a dedicated remote for navigating complex television menus.
From Middle English remote, from Old French remot, masculine, remote, feminine, from Latin remotus, past participle of removere (“to remove”), from re- + movere (“to move”).
Commonly used as a shorthand for 'remote control'.