Earphone used for language laboratory

• Main Author: LI HUAXIU
• Format: Patent
• Language: English
• Published: 22.10.2014
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

The utility model provides an earphone used for a language laboratory. The earphone comprises a head band, adjusting bands, earphone units, an earphone line and a microphone. The end part of the earphone line is provided with an earphone plug. The head band is connected with the adjusting bands through width adjusting structures. Each width adjusting structure comprises a sliding sheet arranged on the upper end surface of the adjusting band, a sliding groove arranged in the head band and a through hole arranged in the end part of the head band. The external end of the sliding groove extends to the through hole. Both the front side and the rear side of the sliding sheet are provided with a first projecting sheet and a first groove which are evenly spaced. The adjusting bands and the earphone units are connected through length adjusting structures. Each length adjusting structure comprises a U-shaped rod with a downward opening, a through groove arranged at the middle part on the lower end of the adjusting band, and a connecting piece arranged on the outer wall of the earphone unit. According to the utility model, the width adjusting structures and the length adjusting structures are adopted by the earphone used for the language laboratory to realize the width adjustment and the length adjustment of the earphone, so that the earphone is adaptable to different students, and the applicability of the earphone is improved.