TheActive Buzzer Module is a simple and easy-to-use sound-generating module designed for alarms, notifications, and user-interface feedback in electronic projects. Unlike passive buzzers, the active buzzer has a built-in oscillating source, which means it only requires a DC supply to produce a consistent soundno external frequency signal is needed. Features: Built-in oscillation circuit for direct DC drive. Produces continuous sound when powered. Compatible with Arduino, ESP32, Raspberry Pi, and other controllers. Simple 3-pin interface (VCC, GND, I/O). LED indicator for power/signal status (on some versions). Specifications: Module Type: Active Buzzer Module Operating Voltage: 3.3V 5V DC Current Consumption: ~20mA (typical) Sound Output: ~85dB @ 10cm Frequency: ~1.5 2.5 kHz (fixed) Dimensions: 32mm 12mm 10mm Weight: 5g Package Includes: 1 Active Buzzer Module