A telephone headset apparatus is disclosed. This headset apparatus includes a body having a microphone at one end and a transducer at the opposite end, an earhook, for attaching the apparatus to the ear of the operator, and a mechanism, contained within the body in a movable engagement, for holding the...http://www.google.fr/patents/US6434251?utm_source=gb-gplus-shareBrevet US6434251 - Headset with adjustable earhook
