Intelect Transport 2-channel stim and ultrasound combo unit features fully functional 1 and 3.3 MHz ultrasound frequencies. Two channels of electrical stimulation output. Ten user-defined memory positions for User Protocols. Four standard waveforms on board: Interferential, Premodulated, High Volt, and Russian. Pulsed and continuous therapy operation (10%, 20%, 50% and 100%). Independent intensity and parameter controls for each channel. Ergonomically designed Sound Head Applicators available in a variety of sizes (1 cm², 2 cm², 5 cm² and 10 cm²). All Sound Head Applicators are interchangeable with Electronic Signature residing on all transducers. Watertight sound heads for use in underwater therapy. Head-warming feature on all sound Head Applicators. Unit uniquely designed for tabletop, wall mount, therapy cart (sold separately) or mobile use. 110V or battery powered (battery pack sold separately) option.