16 Interesting Sounds Music Box DIY Kit
16 Music Sound Box Electronic DIY Kit
16-tone box under your control, arbitrarily issued 16 kinds of interesting analog sounds, it can be used as an electronic toy or it can also be used as a doorbell or alarm.
Operating voltage :4.5-5V
PCB size: 48mm (length) * 42mm (W)
Control modes: manual coding by Switches