EAR CUP WITH ATTACHMENT UNIT

The invention discloses an ear cup with an attachment unit. The attachment unit comprises the components of at least one connecting part which is arranged and constructed for rotatably connecting theattachment unit with the ear cup through a first part that is rigidly fixed on the ear cup and a second part that is rigidly fixed on the attachment unit, wherein the first part is rotatably connectedwith the second part, thereby forming a rotating shaft of the ear cup relative to the connecting device; an opening through which the charging interface of the ear cup can penetrate through the connecting device, wherein the charging interface extends to outside of the ear cup, wherein the charging interface extends from the outer periphery of the ear cup according to the direction of the connecting device and is placed at a side part between a sound receiving part which faces the ear of the user in use and a back part in a direction of getting away from the user in use, the charging interface is electrically connecte