Abstract: The invention relates to an ultrasonic therapeutic device, which can be operated independently of an external power source. For longer periods of operation, for example by a trainer at a sports ground, the device can be operated using an external battery stack and for stationary operation, the electric power can be drawn from the mains supply. For reasons of safety, the emitted ultrasonic intensity is reduced in relation to medical therapeutic devices. The same device can be used to heat or cool the area to be treated. The device can also be set to emit electrical, magnetic and electromagnetic fields and for electro-physiotherapy with or without a separate second electrode. The emission head (1) therefore contains an oscillating element (3), Peltier elements (25) for heating and cooling and the electrodes (28, 29, 30) for electro-physiotherapy.