Our company is expert in ultrasonic, piezoelectric, and magnetic material technology.It is extablished in 1996. We have been producing ultrasonic sensor and ultrasonic transducers systems applications for over eight years. We have designed hundreds of different types of transducers having a wide variety of electro acoustic characteristics for using in many applications, including liquid and bulk level detection, counting, position location, and ultrasonic intrusion alarms, and an automatic scoring system. The key to our success is developing products ahead of the world. Hopesound has R&D department in Shenzhen that makes Hopesound's products enjoy a good satisfaction and reputation. In order to keep up with the ever-changing technological needs of our customers, our R&D department works closely with our customers in developing new products and new applications. We have a factory in Shenzhen and Guangzhou , China . Outfitted with advanced assembly lines. In order to conform to the world's highest standard, have already obtained the ISO 9001 certificate