... :1MHz; Ultrasonic Beauty Body TransducerDimension:D40mmXH18mm;Frequency:1MHz; The Ultrasonic Transducer use for Beauty Body. Dongguan cosson electronic plasic CO.,LTD ... , watches, toys, alarm systems, reversing radar, ultrasonic cleaning, ultrasonic atomization, marine fish exploration, the range of ultrasound equipment etc. High quality ...