The Sonicator 740 (by Mettler Electronics) is 1 and 3 MHz therapeutic ultrasound unit that comes standard with a 5cm2 dual frequency applicator. It is light-weight and portable and features a universal applicator cable to make changing applicators quick and easy. There is an optional rechargeable lithium ion battery pack that truly allows you to take therapy on the road with you. Large soft-touch controls let you set-up treatments quickly and easily and the backlit display shows all treatment parameters and conditions.