doorbell
noun/ˈdɔː.bɛl//ˈdɔɹ.bɛl/- 1.
chuông cửa
A bell, buzzer, or chime device mounted on or adjacent to a door's exterior, meant to be rung by a visitor to announce one's presence.
- There are, of course, smart speakers (which roughly a quarter of American homes have) and smart thermostats, as well as smart thermometers, smart mattress covers, smart coffee makers, smart doorbells, and even, yes, smart toasters.