Portable Ultrasound US1000 Mattress Overlays Toppers Fits Deluxe and Supreme Bath 16 7136 Fits Deluxe and Supreme Bath Chairs * Ideal for roll in showers XX Large * Fits knee circum US 1000 3rd Edition is an FDA approved portable therapeutic ultrasound unit * New now with 3 power output settings * Device must be used with ultrasound gel to conduct the ultrasound energy to the skin * Comes complete with ultrasound AC adapter carrying case ultrasound gel and instruction manual * Generates deep heat through a piezoelectric crystal sound head * The piezoelectric crystal converts electrical energy into a strong vibratory sound wave or ultrasound * Sound waves cause vibration in soft tissue cells increasing temperature and inducing vasodilation * Power Source: AC Adaptor (DC 24V 200mA) * Output Frequency: 1 0 MHz + 10% * Temporal Maximum Power: 8W + 10% * Output Intensity: Low 1