10Pcs 5V 2 Terminals Passive Electronic Alarm Buzzer Electromagnetic Beeper AC Impedance for Arduino (Pack of 10) CYT1008

I used them to add sounds to an arduino project and they were perfect. They sound great right off of the output pins

Small size fits about anywhere you need. Good value.

Muy bueno

I purchased these passive/AC buzzers to add to a component kit I had purchased from another company. A lot of my hobby-tinkering has involved sound & audio projects and I really wanted more of these. However, I do most of my work on breadboards and these leads are too short to hold the buzzers in place. If I try to use one on any breadboard it always falls out with the smallest movement. The only way I've been able to use them is by using a jumper wire with a Dupont-style female plug at the end, and even then they're still too lose.I imagine they would be fine if soldered into a PCB or attached to a proper lead wire. The buzzers do work like they're supposed to when a proper AC signal is used, but they seem impossible to use with breadboards.The attached photo shows the Cylewet 10pc set I purchased. Off to the side I placed a Cylewet buzzer next to a buzzer of a different brand to show how short the leads are.

Worked well

Exactly what the description States... This is a passive Piezo. You cannot just put 5 volts on this and expect to hear sound, you need a 5v frequency driver. Replaced the Piezo on my wire tracer tone generator and it works great.

Applied 5vdc to 5 (out of 10) of these right out of the bag, none of which produced a tone. Tossed those and the rest in the trash. Amazon's star rating cannot be trusted.

Does the job, they are cheap