The Intelect Legend Ultrasound Applicator Heads are designed to work with the Intelect Legend Ultrasound and Intelect Legend Combo therapy systems. These durable, waterproof sonic transducers are used to effectively apply ultrasonic therapy for the treatment of both chronic and acute pain. Ergonomically designed for a variety of applications, and available in three distinct sizes, these applicators are an ideal addition to any Legend Ultrasound Therapy regimen. Each applicator is also interchangeable between different units; the built-in Electronic Signature technology residing on all transducers allows for easy change out. A head warming function is included on all applicators for added patient comfort. Maximize the effectiveness of your Intelect Legend Ultrasound and Combo therapy units.