A head is connected to an opposite direction of a cord connected to a plug. A canal part thereof is put into one's ear-hole to listen an audio.
A turning-moveable swing arm axially installed in a body of the head is push or pull into the side face to control a degree of angle. A swing bushing axially installed in the free side of swing arm supports a crooked ear-cleat and is turning moveable into before and behind of the side face. The cord goes to the behind of ears.
The broken lines are for illustrative purposes only and form no part of the claimed design.