5V Active Buzzer Magnetic Long Continuous Beep Tone Mini Active Piezo Buzzers for Arduino DIY Electronic Alert 40PCS

5V active buzzer design with built-in oscillation circuit; simply apply DC 5V to produce a stable, long continuous beep tone without extra drive circuits.

Miniature body with approximate dimensions of 12mm diameter x 9.5mm height, ideal for space-limited boards, compact modules, and dense electronic layouts.

Generates a clear, loud, and continuous Alert tone, suitable for warning indicators, status reminders, fault Alert , and simple sound prompts.

Magnetic active piezo buzzer structure offers stable performance, reliable sound output, and excellent durability for long-term operation in hobby and educational projects.

Two-pin design for straightforward connection. Connect to 5V and GND through Arduino, microcontrollers, or other control boards to activate the buzzer directly.

Perfect for Arduino projects, DIY electronics, school experiments, Alert systems, timers, toys, home-made security devices, and various electronic sound indication circuits.

Colour: As Shown

Material: Plastic+Iron

Package Contents:

40*electromagnetic buzzers

Only the above package content, other products are not included.

Note: Light reflection and different displays may cause the colour of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.