About Us


Deken LongJoin is a subsidiary of Longjoin group which is an EMS factory providing OEM manufacture services and ODM service.

Our company focus on audio system industry , is a State High-tech Enterprises in China. We have created our own brands: DEKEN and Thinuna, enjoyed high reputation domestically and oversea market in audio industry.


We provides all-in-one OEM&ODM service as well as the integrated solutions in design, marketing, project management and after-sale service for our audio clients all over the world.

Our products include:

  • public address system

  • professional audio

  • conference system

  • control system and AV matrix

  • portable audio

  • Hi-Fi home theater

The public address system product include:

  • audio management system

  • voice alarm system

  • IP network broadcasting system

  • mixer amplifier, 100V/70V amplifier

  • PA speaker: ceiling speaker, wall speaker, column speaker, horn speaker, projector speaker, lawn speaker, etc.

The professional audio product include:

  • professional speaker

  • professional amplifier

  • media matrix

  • audio processor

  • audio mixer, digital mixer, automatic mixer

  • karaoke effector

  • power management device

  • microphone, wireless microphone

The conference system product include:

  • Wireless meeting system

  • discussion meeting system

  • video tracking system

  • voting system

  • simultaneous interpretation system

  • infrared language distribution system

Quality guarantee, innovation and customers-oriented service is our main principle to guide the development of the company.  We also pay attention to our employee’s skill training and self-growth to seek the combined development.

By joining and working with us together, we believe that will bring your abundant life and thriving business . We are looking forward to a long-term and successful partnership with you.

At the moment we are looking for distributors and system integrators worldwide. Welcome to join our global family, we firmly believe that we will become a trusted partner.