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Amazon.com : uxcell 5 Pcs DC 3-24V 12mA 85dB Sound Electronic Buzzer Alarm Black 23 x 12mm : Electronics
Amazon.com: RuiLing 2pcs DC 3-24V Active Piezo Buzzer with Lead Wire 2312 High Decibels Continuous Sounder Electronic Buzzer Alarm 23x12mm : Electronics
RuiLing 2pcs DC 3-24V Active Piezo Buzzer with Lead Wire 2312 High Decibels Continuous Sounder Electronic Buzzer Alarm 23x12mm : Electronics - Amazon.com