Thermotherapy for pain relief and relaxation massage for neck, shoulder, back, sciatica, legs and arms. Heat therapy with powerful vibration to improve blood circulation, soothe discomfort, relax and increase muscle flexibility, heal damaged tissues, ease away aches and relieve stress. Cold therapy with vibration to reduce inflammation and swelling, relieve pain from joint and tendon, firm and tone weary muscles on back and buttock. Powerful vibration massage with 5 selective intensities from 1800 RPM to 2800 RPM, enjoy both a relieving hot-stone and invigorating ice cool massage therapy, generate undeniable relaxation on muscles. Selected by physical therapists, chiropractors and acupuncturists for body and joint pain therapy treatment. Vibration massage and cold or heat therapy can work alone or simultaneously. Hot and cold function with unique dual action thermo-control system. Cast aluminum double massage heads