... :1MHz; Ultrasonic Beauty Body TransducerDimension:D40mmXH18mm;Frequency:1MHz; The Ultrasonic Transducer use for Beauty Body. Dongguan cosson electronic plasic CO.,LTD ... ., Ltd). specialize in producing electro-acoustic components such as buzzer(Piezo electric, electromagnetic, mechanical), piezoelectric ceramic element, SMD magnetic transducers, condenser ...