Resting surface, characterized in that it is constituted from a resting surface such as a mattress or the like, in which at least one ultrasound transducer is connected to a battery, a control board and a switch for the control of operation. (Machine-translation by Google Translate, not legally binding)1. Superficie de descanso, caracterizada porque está constituida a partir de una superficie de descanso tal como un colchón o similar, en cuyo seno se establece al menos un transductor de ultrasonidos conectado a una batería, una placa de control y un interruptor para el control de funcionamiento.
