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Buzzer
Mini Buzzer DC 3V 5V 12V Magnetic Universal Piezoelectric Long Beep Tone With Connector & Cable
Price range: ৳21.75 through ৳39.00
This product has multiple variants. The options may be chosen on the product page 
Buzzer
Mini 2Pin Buzzer DC Magnetic Universal Long Beep Tone Alarm Sound Module for Arduino & DIY Projects
Price range: ৳21.00 through ৳33.00
This product has multiple variants. The options may be chosen on the product page