The Musical Melody And Doorbell ICs are
highly required for repairing the bicycle siren, door bells, calling bells,
etc. These extremely popular Musical IC are apt for melody generation without
complex motherboard. Due to this, these are very popular for hobby projects and
Do-it-yourself projects. The main feature of the provided solution is that
users can control the time duration for which it will keep ringing. In
addition, the oscillation frequency of doorbell sound can be controlled by
the user. Musical Melody And Doorbell ICs have compact designs and extremely
functional modules. When connected with power, these make the sound of
"Ding Dong".