Changzhou qisheng electronics Co., Ltd. is one of the most professional and leading companies in field acoustic components. We can supply such products as buzzers transducers, piezo electro-magnetic speakers, receivers, microphones elements.If you are ...

DTBuzzer Electronics Co., Ltd established in 1997, it is an experienced manufacturer focus Piezo buzzer, element and Audible alarm, located Guangzhou, China.All of the staffs are doing their best to provide more flexible better service customers, with ...

Longsun Acoustic is a leading professional designer and provider of acoustic components: ultrasonic sensor, dynamic speakers, telephone mobile receiver, buzzer, siren alarm bell etc. With our strong R&D team up-to-date production equipments based in ...