€ 2,50
It can be used on triditional PWM receivers or FPV racing flight controller. The tiny buzzer is drived by on board MCU. It can output louder sound than 5V active buzzers:
Matek Lost Model Beeper / Micro Buzzer
€4.20 Regular Price
€2.50Sale Price
Specs:
Wings:
Built-in MCU Working voltage range: 4.5~5.2V DC Power: 1W Max. Sound Output: 90dB Max. Size & Weight: 18x13x8mm, 2g