The module is usually used to make sounds via setting under some specific circumstance.
- BUILT-IN OSCILLATING SOURCE – Produces sound once connect to power.
- LOW-LEVEL TRIGGER - A single low level can make the buzzer beep.
- ANTI-REVERSE PORT - Provides a firm connection.
- INDICATORS - With power light and indicator of digital signal output.
Working voltage: 3 - 5V
SIZE - PCB Size: 2.0 x 2.0 cm
For more info, please refer to http://wiki.sunfounder.cc/index.php?title=Buzzer_modules
- Active buzzer Module x 1
- 3-Pin anti-reverse cable x1