Ding Dong Bell can be used as a desk bell to grab attention. Or, it can be connected to a bluetooth speaker, or even to an AUX speaker to play the sound of a ding dong bell.
This can also be used as a call bell in offices, say, for secretaries, peons etc. Or for calling domestic help from kitchen...
You can also place a bluetooth speaker near door, inside your house, and ring the bell by tapping on this app.

Or (probably the most interesting use), it can be used as a tool to prank your friends :)

For questions, issues, feedback, or anything, please feel free to contact me at maneevak.bajaj@gmail.com and I'll be glad to help you out.
Desk Bell