SOUND PROVIDING METHOD USING EARPHONE SET AND EARPHONE SET

APPARATUS AND METHOD FOR GENERATING A FIRST CONTROL SIGNAL AND A SECOND CONTROL SIGNAL BY USING A LINEARIZATION AND/OR A BANDWIDTH EXTENSION

Mobile terminal with at least two transducers

Mobile terminal with at least two transducers

Method, electronic device and recording medium for compensating in-ear audio signal

Volume adjustment method, storage medium and mobile terminal

Method and apparatus for adjusting volume, terminal device and storage medium

Audio device

Telephone receiver identification

Mobile terminal with at least two transducers

MOBILE CALL DEVICE AND DUAL FREQUENCY RECEIVER USED THEREBY

Electrical-acoustic transformation device and electronic device

Sealed pipe-loaded loudspeaker for improving low frequency response in portable devices

Local tone generation

Multiple receiver assembly and a method for assembly thereof

Ergonomic anechoic anti-noise canceling chamber for use with a communication device and related methods

Portable electronic device

Ergonomic tubular anechoic chambers for use with a communication device and related methods

Ergonomic tubular anechoic chambers for use with a communication device and related methods

Mobile terminal with at least two transducers

Apparatus

Speaker, and mobile electronic device

Mobile terminal with at least two transducers

Enclosing adsorbent material

Handheld electronic device having hidden sound openings offset from an audio source

Handheld electronic device having hidden sound openings offset from an audio source

Speaker, speaker device using the same and electronic apparatus and vehicle using the speaker

Leak-Tolerant Earspeakers, Related Portable Electronic Devices and Methods of Operating the Same

HANDHELD ELECTRONIC DEVICE HAVING HIDDEN SOUND OPENINGS OFFSET FROM AN AUDIO SOURCE

Apparatus incorporating an adsorbent material, and methods of making same

Sound box and portable electronic device using the same

Mobile terminal and speaker

Vibration motor as a transducer of audio

Radio with dual sided audio

Loudspeaker

Communications Unit With Arrangement For Loud Reproduction Of Sound

Handheld electronic device having hidden sound openings offset from an audio source

Sound sponge for loudspeakers

Earset assembly

Telephone handset and acoustic converter for one such telephone handset

Speaker assemblies and mobile terminals including the same

Mobile terminal with at least two transducers

Vibration actuator device of portable terminal

Sound tube tuned multi-driver earpiece

In-ear monitor with shaped dual bore

Dual-diaphragm speaker assemblies with acoustic passageways and mobile terminals including the same

Sound generating transducer

Multifunction transducer

Speaker assemblies and mobile terminals including the same