What has a ring, but no finger?

Why this works

This riddle plays on the word "ring," which can refer to both a circular band worn on a finger and the sound a phone makes when receiving a call. In this case, the answer "phone" works because a phone does indeed have a "ring" (the ringing sound), but it doesn't possess a finger to wear an actual ring. The clever twist lies in the dual meaning of "ring," leading us to think beyond the literal interpretation!