Patent ID: 9025789
Filing Date: 2015-05-05
Classification: H04B,H04R

Abstract:
1. An apparatus comprising: a first earpiece into which a first acoustic driver is disposed to acoustically output a first audio channel; a second earpiece into which a second acoustic driver is disposed to acoustically output a second audio channel; a first connector to enable coupling of a first audio device to the apparatus; a second connector to enable coupling of a second audio device to the apparatus; powered electronic circuitry; and a coupler coupling the first and second audio channels such that the same audio is acoustically output by both the first and second acoustic drivers in response to either one of: a lack of electric power provided to the powered electronic circuitry through the first connector, through the second connector and from a power source of the apparatus; and only the first or second audio device being coupled to the corresponding one of the first and second connectors, wherein the audio device provides the apparatus with only one audio channel.