Major® Guaifenesin Cold and Cough Relief, 1 Bottle Syringes Ear US 1000 3rd Edition is Wrist and Hand 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 Easy mobility for carts and wheeled equipment Thins and loosens mucus Guaifenesin is one of the active ingredients in Mucinex® – a registered trademark of Reckitt Benckiser