Behind-the-ear (BTE / receiver-in-canal)
The workhorse style. A small housing sits behind the ear with a thin wire or tube running into the canal. Larger controls, larger battery, and it fits the widest range of hearing profiles — which is why audiologists reach for it first in Tacoma clinics and Sarasota ones alike.
Trade-off: the most visible of the four styles, though modern receiver-in-canal housings are far slimmer than the beige units people picture.