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 1.6W (0.11 W/cm2) Medium 2.6W (0.24 W/cm2) High 4.6W (0.47 W/cm2) * Duty Cycle: Low 7% Med 15% Hi 30% * Output Mode: Pulse * Pulse Width: 5.4ms +-10% * Repetition Rate: 150Hz +10% * Timer Setting: 30 minutes auto-off +-1% * Weight of unit: 120 g * 6 Month Manufacturer Warranty on unit