A wearable audio device in the form of eyeglasses includes actuators disposed the ear stems. The actuators, which can be in the form of buttons, and/or the ear stems, are configured to enhance the comfort of the users. For example, the buttons can be disposed on the upper surface of the ear stems with...http://www.google.fr/patents/US7445332?utm_source=gb-gplus-shareBrevet US7445332 - Wireless interactive headset
