The M5Stack Buzzer Unit is a mini passive buzzer unit, driven by a 4KHz signal that sounds up to 72dB within 10cm distance under rating input power. With its compact size, low-power consumption, awesome audio performance and protective housing, it's ideal for any scenario where your project needs an audible output or alert. Features * Drive signal: * 4KHz oscillation frequency * Up to 72dB (within 10cm, at rating power) * Drive signal: 4KHz 1/2duty square wave Package Content * 1x BUZZER Unit * 1x HY2.0-4P cable (20cm) Specification Specifications Parameters Drive frequency 4KHz 1/2duty square wave Power consumption 5V@86mA Net weight 3.5g Gross weight 8.5g Product size 24 * 24 * 8mm Packing size 93 * 138mm Resources * Product Documentation https://elecena.pl/product/22725481/m5stack-passive-buzzer-unit 2023-03-07 https://elecena.pl/product/22725481/m5stack-passive-buzzer-unit 2023-12-27 https://elecena.pl/product/22725481/m5stack-passive-buzzer-unit 2024-09-19 https://elecena.pl/product/22725481/m5stack-passive-buzzer-unit 2024-11-29 https://elecena.pl/product/22725481/m5stack-passive-buzzer-unit 2024-11-30 https://elecena.pl/product/22725481/m5stack-passive-buzzer-unit 2025-09-29 https://elecena.pl/product/22725481/m5stack-passive-buzzer-unit 2025-11-28 https://elecena.pl/product/22725481/m5stack-passive-buzzer-unit 2025-11-29