... 16mm; Frequency:1.7MHz; Useage:Ultrasonic atomizer; Ultrasonic Ceramic TransducerDiameter:16mm;Frequency:1.7MHz;Useage:Ultrasonic atomizer; Dongguan ... acoustic components such as buzzer(Piezo electric, electromagnetic, mechanical), piezoelectric ceramic element, SMD magnetic transducers, condenser microphones, ultrasonic sensor, ... for business inquiry at any time! Ultrasonic Ceramic Transducer