beepkey
nounUK /ˈbiːpkiː/
US /ˈbipki/
A beepkey is a small key that makes a beeping sound when you press it.
She pressed the beepkey on the toy and it went beep-beep.
OTHER MEANINGS
2. A tiny electronic key that unlocks a door with a beep.
He waved the beepkey at the gate and it opened.
3. A playful name for a key that chirps to help you find it.
My beepkey chirped from under the couch.
4. A small device that beeps to confirm a press.
The beepkey on the cash register beeped with each sale.