室外扬声器  制造商、经销商、供应商

Guangzhou DSPPA Audio Co., Ltd. is a professional audio manufacturer since1988. With more than 30 years' history of designing and manufacturing audio products, DSPPA has enjoyed a high reputation in and out of China. Technology innovations, strict quality and environment control (ISO 9001&ISO14000) and market-oriented products have made DSPPA to be the leading brand in the field of public address system  and  conference  system. As  the  chief  editor  of  the Technical  Code  for  Public Address  System Engineering  of  China,  DSPPA  is  widely  recognized  as  the  largest  and  most  professional  audio equipment supplier in China.

Hongchang(changzhou) Electronic Co., Ltd established in 1997 and have more than 25years produce experience. It covers an area of 9,000 square meters and a building area of 11,000 square meters.
Our main products are Speaker unit, buzzer, piezo element, ultrasonic sensor and audio jammer.
Speaker: mylar speaker, audio speaker, car speaker, TV speaker, woofer speaker, waterproof speaker, speaker driver
Buzzer: piezo buzzer, piezo transducer, magnetic buzzer, magnetic transducer, mechanical buzzer, SMD type
Ultrasonic sensor: 25Khz ultrasonic sensor, 30Khz ultrasonic sensor, 40Khz ultrasonic sensor
Piezo element: Size from 10mm-50mm
Now we have more than 200 staffs, especially including 18 acoustic engineers, provide products customization service, offer free sample for test.
we are focus on product innovation , Management innovation. The quality of product wasrecognized by customer from all over the world.

Founded with a vision for pioneering in the realm of audio solutions, ZYCOO stands as a distinguished developer and manufacturer of IP telephony and public address systems. Our commitment spans over the years, producing powerful all-in-one solutions that amalgamate both software and hardware, primarily serving the SME market.

Wir führen seit 1996 Veranstaltungstechnik wie Ton- und Lichttechnik, Messestände, Traversen, usw. In unserem Onlineshop envirel.de und Showroom in Pulheim bei Köln finden Sie zahlreichen günstigen Angebote.