Buy 3 for the price of 2!
Please note that a 5V beeper is included with every purchase of a Kakute F4 flight controller board.
5V active beeper / buzzer. Used on the F3FC tricopter frame, or on many other flight controllers.
Used for indicating different flight modes, tail tune progress, arming and as a lost model alarm among other things. Quite loud. 7.6mm leg spacing.