Patent ID: 8923525
Filing Date: 2014-12-30
Classification: H04R

Abstract:
1. A pair of headphones comprising: a left speaker unit including a left speaker for providing audio output; a right speaker unit including a right speaker for providing audio output; an adjustable band configured to hold the left speaker unit and the right speaker unit; a port located on one of the speaker units, the port operatively connected to an internal power source of the headphones; and an internal power management component for regulating the internal power source of the headphones and controlling an output voltage of the internal power source so that when electrical power is provided by the internal power source to a function of the headphones and a first cable is connected to the port and to an external device, electrical power is also transferred from the headphones to the external device, and when a power adaptor is connected to the port and to a wall outlet, the internal power source is being charged.