https://patents.google.com/patent/CN214280971U/en
CN214280971U - Charger is inhaled to audiphone magnetism - Google Patents
The utility model discloses a charger is inhaled to audiphone magnetism, including charger body, the joint that charges, charger body's one end is provided...
chargermagnetismgooglepatents
https://patents.google.com/patent/CA255439A/en
CA255439A - Audiphone - Google Patents
googlepatents