POWERFUL FUNCTION - This is a powerful electric dual-head heated massager with a built-in high-powered, powerful motor that delivers high-speed shock vibrations that penetrate even the tightest muscles for deep relaxation and relief of pain in deeper tissues Dual Head Impact - New Handheld Neck and Back Massager It's dual massage head design is more effective than single massage head, the dual massage head is like human hands massaging, he acts in a wider range of intensity is also better, can be more effective for deep massage and relaxation. This back massager provides a comprehensive massage for body parts such as neck, shoulders, back, chest and abdomen, legs and full body muscles to promote metabolic circulation and relieve muscle pain, knots and spasms. Relaxes muscles and relieves pain. Heat Therapy Function - This electric body massager is equipped with a heating function that provides soothing heat to the body, helping to relax muscles, improve blood circulation, relieve pain, and reduce stress. Combining heat therapy with adjustable massage heads, you can customize your massage experience. When using the heating function, do not attach massage attachments.