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.