Pre-calibrated, ergonomically designed sound heads which operate at 1 and 3 MHz frequencies. Ultrasound applicators can be used with the Intelect Transport 2 Combo Electrotherapy + Ultrasound unit and the Intelect Transport 2 Ultrasound unit. Coupling detection settings give the option to alert the clinician when the applicator has been decoupled from the patient by an audible beep and stopping the treatment timer, ensuring the proper energy is delivered to the patient.