Equipment worn by Yukikaze from Kantai Collection, consisting of a brass-colored speaking tube with a hinged lid located next to her mouth, where one would find a microphone in a conventional headset.
Note: Many artists do include this equipment. The two grey-colored cones on either side of Yukikaze's head are not part of the speaking tube headset, as they represent the two horn antennas of her Type-22 radar set.