A bell is a wonderful apparatus. For some it is a form of communication others it's a musical instrument.
A bell can be found on a desk in a lobby or other public place for a patron to ring when they need assistance.
Church bells signify the time of day or the beginning or ending of a service
Jingle Bells, jingle bells, jingle all the way...
Pet collar bells make it easy to locate and identify your dog or cat.
Bells can be used to make music
Carol of the Bells is a popular seasonal holiday favorite
Anita Ward's 1979 hit "Ring My Bell" brought the sounds of bells to the disco dance floor