Two audio sensors on 4-LOM
A sound detector, with alternative names including audio pickup, auditory sensor, or audio receptor, functioned as a sensor specifically designed to pick up sound. This particular part saw utilization in a variety of models, such as 3PO-series protocol droids, RA-7 protocol droids, and LOM-series protocol droids, and was also incorporated into the helmets utilized by Imperial stormtroopers.