Music Ring Chip Ding-Dong Bell Board MX-01 Module
Musical chip ding dong doorbell,
Trigger with Ringing Three Times.
1. working voltage:3-4.5V
2. speaker:0.25W-2W 8ohm
Push botton once, play doorbell 3 times,about 3 seconds
Size: 22 * 12 mm (length * width)
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