Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. SYNCHROSONIC U/50 * The versatile SynchroSonic U/50 provides therapeutic ultrasound which may be applied separately or which may be combined with electrical stimulation simultaneously through the ultrasound transducer using an external electrical stimulator * The cable fault alarm system is an added feature of the U/50 * This system will detect improper transducer cable connection and/or transducer cable damage * If such detection is made, an audible signal will alert the practitioner * Delivers up to 20 watts variable or non-interrupted power * U50 - For Use with Combination Therapy *