Phonohorn amplifier

This horn was designed in 123D Design. The Circuitry consists of a 3 volt coin cell battery, a 3 volt coin cell battery holder, a UM66T music chip, a small speaker, and a momentary push button. The horn that this uses amplifies the sound a little but it is still clear. The box that holds the circuitry is small so you can carry it around in a coat pocket or etc.