| Patents for H04R 1 - Details of transducers (42,173) | 
|---|
| 09/04/2013 | CN203181155U Replaceable type loudspeaker and electronic apparatus  | 
| 09/04/2013 | CN203181154U Sound box  | 
| 09/04/2013 | CN203181153U Ultrathin anti-compression plastic speaker  | 
| 09/04/2013 | CN203181152U Waterproof Bluetooth sound equipment  | 
| 09/04/2013 | CN203181151U Multifunctional loudspeaker box  | 
| 09/04/2013 | CN203181150U A mobile terminal utilizing auxiliary materials to seal a microphone  | 
| 09/04/2013 | CN203181149U Mobile terminal increasing size of sound cavity of loudspeaker  | 
| 09/04/2013 | CN203181148U Integrated suspended ceiling having sound equipment module  | 
| 09/04/2013 | CN203181147U Loudspeaker box  | 
| 09/04/2013 | CN203181146U Computer-used sound box holder  | 
| 09/04/2013 | CN203181145U Novel sound box with pedestal and moistureproof plate  | 
| 09/04/2013 | CN203181144U Novel sound box with handle and dustproof film  | 
| 09/04/2013 | CN203180979U Loudspeaker box capable of connecting with fixed-line telephone for hands-free call  | 
| 09/04/2013 | CN203178692U Intelligent watch  | 
| 09/04/2013 | CN103283259A Electronic apparatus  | 
| 09/04/2013 | CN103283258A A microphone mounting apparatus  | 
| 09/04/2013 | CN103281651A Stage audio system, stage structure and stage audio system arrangement method  | 
| 09/04/2013 | CN103281650A Three-dimensional sound guiding cavity structure for cellphone  | 
| 09/04/2013 | CN103281649A Handheld digital device structure with expandable sound chambers and speakers  | 
| 09/04/2013 | CN103281648A Audio cable  | 
| 09/04/2013 | CN103281647A 耳机装置 Earphone device  | 
| 09/04/2013 | CN103281646A 耳机装置 Earphone device  | 
| 09/04/2013 | CN103281645A Wireless headset and working method thereof  | 
| 09/04/2013 | CN103281644A Moving-coil microphone capable of adjusting damping material air permeability  | 
| 09/04/2013 | CN103281643A Novel multifunctional microphone  | 
| 09/04/2013 | CN103281642A Sound box  | 
| 09/04/2013 | CN103281641A Sound box  | 
| 09/04/2013 | CN103281640A Sound box  | 
| 09/04/2013 | CN103281639A 扬声器模组 Speaker Module  | 
| 09/04/2013 | CN103281514A Terminal device of voice, image and position evidence-taking intercom system  | 
| 09/04/2013 | CN103281421A Private conversion Bluetooth earphone of voice transmitting and voice receiving fission  | 
| 09/04/2013 | CN101879677B Automatic laminating mechanism  | 
| 09/04/2013 | CN101754067B Headphone hole cover device  | 
| 09/04/2013 | CN101594564B Multifunctional sound box  | 
| 09/04/2013 | CN101594562B 便携式电子装置 The portable electronic device  | 
| 09/04/2013 | CN101459863B Loudspeaker for vehicle  | 
| 09/03/2013 | US8526665 Electro-acoustic transducer comprising a MEMS sensor  | 
| 09/03/2013 | US8526664 Capacitor microphone unit and capacitor microphone  | 
| 09/03/2013 | US8526663 Electronic device  | 
| 09/03/2013 | US8526662 Articulating speaker assembly providing for pivotal adjustment of connected first and second members  | 
| 09/03/2013 | US8526661 Articulating speaker  | 
| 09/03/2013 | US8526660 Loudspeakers and systems  | 
| 09/03/2013 | US8526656 Microphone unit  | 
| 09/03/2013 | US8526655 Loudspeaker enclosures for mounting in an aperture in a cavity wall  | 
| 09/03/2013 | US8526654 Acoustic wave generation device and equipment including a plurality of such devices  | 
| 09/03/2013 | US8526629 Audio output apparatus and compensation method thereof  | 
| 09/03/2013 | US8526600 Antihelix-conforming ear-mount for personal audio-set  | 
| 09/03/2013 | CA2594745C Hearing aid with rechargeable battery and rechargeable battery  | 
| 09/03/2013 | CA2512576C Ported loudspeaker system and method with reduced air turbulence, bipolar radiation pattern and novel appearance  | 
| 09/03/2013 | CA2494637C Method and apparatus for multi-sensory speech enhancement on a mobile device  | 
| 08/29/2013 | WO2013126332A1 Convective airflow using a passive radiator  | 
| 08/29/2013 | WO2013126020A1 Dual self-winding retractable device for a wire of a headphone  | 
| 08/29/2013 | WO2013123992A1 Left-right side-indifferent hearing aid connector  | 
| 08/29/2013 | WO2013086635A4 Locating and relocating device  | 
| 08/29/2013 | US20130223669 Headphones with a modifiable timbre  | 
| 08/29/2013 | US20130223668 Loudspeaker box and mobile terminal device  | 
| 08/29/2013 | US20130223667 Terminal having speaker unit  | 
| 08/29/2013 | US20130223656 Waterproof structure and electronic equipment including the same  | 
| 08/29/2013 | US20130223655 Speaker module for mobile device and mobile device having duct radiation structure  | 
| 08/29/2013 | US20130223654 Adjustable Ventilation Openings in MEMS Structures  | 
| 08/29/2013 | US20130223647 Electro-acoustic transducer  | 
| 08/29/2013 | US20130223631 Engaging Terminal Devices  | 
| 08/29/2013 | US20130222702 Headset, circuit structure of mobile apparatus, and mobile apparatus  | 
| 08/29/2013 | US20130222192 Portable terminal  | 
| 08/29/2013 | DE102013203180A1 Verstellbare Ventilationsöffnungen in MEMS-Aufbauten Adjustable vents in MEMS structures  | 
| 08/29/2013 | DE102012003772A1 Lautsprechersystem für ein Kraftfahrzeug Speaker system for a motor vehicle  | 
| 08/28/2013 | EP2632178A1 Acoustic molded article, speaker using same, and electronic equipment and mobile apparatus using speaker  | 
| 08/28/2013 | EP2632172A1 Speaker module for mobile device and mobile device having duct radiation structure  | 
| 08/28/2013 | EP2632171A1 Loudspeaker housing and mobile terminal device  | 
| 08/28/2013 | CN203167245U Audio processing circuit and earphone  | 
| 08/28/2013 | CN203167244U Audio processing circuit and earphone  | 
| 08/28/2013 | CN203167233U Earphone denoising device  | 
| 08/28/2013 | CN203167232U Harmonic?resonance type sound box  | 
| 08/28/2013 | CN203167231U An audio-video system containing an audio wireless transmission function  | 
| 08/28/2013 | CN203167230U Furred ceiling type acoustic equipment based on wave beam control  | 
| 08/28/2013 | CN203167229U Vehicle interior sound field equalization device  | 
| 08/28/2013 | CN203167228U Sound device having charging function  | 
| 08/28/2013 | CN203167227U 磁悬浮音箱 Maglev Speaker  | 
| 08/28/2013 | CN203167226U 音箱 Speakers  | 
| 08/28/2013 | CN203167225U Bluetooth earphone-used hanging lug  | 
| 08/28/2013 | CN203167224U Insert panel used for bluetooth earphone  | 
| 08/28/2013 | CN203167223U Volume adjusting button for bluetooth earphone  | 
| 08/28/2013 | CN203167222U Cover cap used for bluetooth earphone  | 
| 08/28/2013 | CN203167221U Front cover used for bluetooth earphone  | 
| 08/28/2013 | CN203167220U Panel used for bluetooth earphone  | 
| 08/28/2013 | CN203167219U Rear cover for bluetooth earphone  | 
| 08/28/2013 | CN203167218U Novel earphone plug continuous insertion plug device  | 
| 08/28/2013 | CN203167217U Earphone conversion device  | 
| 08/28/2013 | CN203167216U Storable ear rack device  | 
| 08/28/2013 | CN203167215U 耳机固定夹 Headphone retaining clip  | 
| 08/28/2013 | CN203167214U Active foldable earphone and switching device thereof  | 
| 08/28/2013 | CN203167213U Anti-winding ornament earphone  | 
| 08/28/2013 | CN203167212U Earphone output circuit and TV set  | 
| 08/28/2013 | CN203167211U Novel ear canal device  | 
| 08/28/2013 | CN203167210U Power-saving earplug  | 
| 08/28/2013 | CN203167209U Earphone  | 
| 08/28/2013 | CN203167208U Improved structure of earphone  | 
| 08/28/2013 | CN203167207U Microphone rack  | 
| 08/28/2013 | CN203167206U Novel light emitting microphone  | 
| 08/28/2013 | CN203167205U Waterproof microphone  |