Rotatably controlled earphone

Abstract

Provided is a rotatably controlled earphone including a housing, a circuit board, a Hall sensor, and a magnetic knob. The circuit board is disposed in the housing. The Hall sensor is disposed in the housing and electrically connected to the circuit board. The magnetic knob is rotatably disposed on an outer peripheral wall surface of the housing and cooperates with the Hall sensor. The rotatably controlled earphone achieves adjustment functions of increasing/decreasing volume, adjusting a depth of noise reduction, switching to a last song or a next song and the like by rotating a mounting shell, facilitating the use of the earphone, simplifying the structure of the earphone, reducing the production cost of the earphone, controlling the volume of the earphone and being convenient for a user to find and rotate, thereby increasing the using satisfaction of the user.

Dependencies are inferred from the claim text.