To eliminate limitation in designing and improve an acoustic effect by arranging a melody IC, a battery and a speaker on a coin passage upper plate, notching a coin passage lower plate to the minimum required, providing an echo plate on the surface of the speaker, and providing a sound passing hole communicated with the outside.
A coin passage 12 having an acoustic operation switch 7 is formed at the depth of a coin insertion port 11. A coin passage lower plate 8 is notched to the minimum required. A melody IC 3, a battery 4, and a speaker 5 are arranged on a coin passage upper plate 2. A space capable of storing the melody IC 3 or the like is provided in the upper plate 2 of the coin passage 12. The melody IC 3, battery 4, and speaker 5 are wired in the coin passage upper plate 2 and are operated by the acoustic operation switch 7 provided at the coin 13 passing position of the coin insertion port 11. An echo plate 6 is provided on the surface of the speaker 5. A sound passing hole 10 communicated with the outside from a savings box main body or an acoustic unit 1 is provided.
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