AbidingOhmsLaw, 2 years ago (edited 2 years ago)

No beeper in this photo. Could be a piezoelectric disk hidden some where they are small and thin. what’s on the other side of the PCB? Also look stuck to the plastic, piezos are often stuck to the casing to use it as a sounding board.

Edit: not sure what the yellow thing, cap maybe, can you get a better picture of the text on it ?