It can be used on traditional PWM receivers or FPV racing flight controller.
The tiny buzzer is driven by onboard MCU. It can output louder sound than 5V active buzzers.
Specifications
Built-in MCU
Working voltage range: 4.5~5.2V DC
Power: 1W Max.
Sound Output: 90dB Max.
Size & Weight: 18x13x8mm, 2g
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