Patent ID: 7974664

Claim:
An ear-hook device for being disposed in a Bluetooth earphone, wherein the Bluetooth earphone has a casing and the casing has a through hole, the ear-hook device comprising: a hinge assembly rotatably disposed on the Bluetooth earphone, the hinge assembly comprising: a bracket having two open slots and passing through the through hole of the casing along a first direction, wherein a shell of the casing is embedded into a track disposed on the outer surface of the bracket for enabling the bracket to rotate on the casing with respect to a first axis; and an ear hook rotatably disposed on the bracket of the hinge assembly, wherein the ear hook passes through the two open slots in a second direction and is able to rotate with respect to a second axis, whereby a user can selectively wear the Bluetooth earphone on his or her left ear or right ear by rotating the ear hook with respect to the second axis and rotating the bracket with respect to the first axis.