Abstract: An acoustic headset having a pair of elongated channel structures for carrying sound tubes which are provided with ear pieces situated adjacent upper end regions of the channel structures. These channel structures have distant from their upper end regions, respectively, lower end regions interconnected with each other by way of a connecting structure which forms a continuous, elongated, one-piece body with the pair of channel structures. The connecting structure interconnects the pair of channel structures for movement toward and away from each other while a releasable holding structure is connected with the pair of channel structures for releasably holding them at a selected distance from each other, so that in this way it is possible for the ear pieces to be accommodated to the distance between the ears of a given individual.