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Shenzhen Listensir Technology Co., Ltd. is an excellent acoustic solution provider formed by a professional team with many years experience in the acoustic industry. Adhering to the propose of providing customers a superior acoustical environment,   Listensir focus on acoustic product design, production, innovation and develpment to ensure that our products are in the leading position of the peer. Our main business scope includes: acoustic test and calculations, muffler, anechoic chamber, steel acoustic doors, sound insulation windows, shielding door, water proof door, blast resistant door, acoustic test room, listening room, acoustic enclosures, floating floor, 3D design and detailed acoustic sound field calculation, and relavent architectural acoustic design and noise control product and project. From acoustic consulting, product design and realization, installation, test, acceptance reporting to delivery, we can provide customer one stop turn key project contracting service.