Scroll down to compare the piezo buzzer at different stores and find the best price.
Amazon.de - 3-24V Piezo Electronic Buzzer Alarm
€4.99
Amazon.de
eBay - 2pcs 3-24V Piezo Electronic Buzzer Alarm
$6.93
eBay
Amazon.com - 5pcs 3-24V Piezo Electronic Buzzer Alarm
$6.99
Amazon.com
Amazon.co.uk - 5pcs 3-24V Piezo Electronic Buzzer Alarm
£5.89
Amazon.co.uk
Amazon.es - 3-24V Piezo Electronic Buzzer Alarm
Amazon.es
Aliexpress - 5pcs 3-24V Piezo Electronic Buzzer Alarm
$3.90
Aliexpress
Banggood - 3-24V Piezo Electronic Buzzer Alarm
$13.99
Banggood.com