This Homedics MYTI massage gun uses vibration therapy to ease away aches, pains and stiffness in your muscles. Perfect, if you are looking to recover and bounce back after intense workouts. A slow gentle vibration for your back or a powerful pressure for your arms - stay in charge of your massage with its 4 intensity settings. Plus, there's a Peltier heated head that stimulates blood flow and relaxes your tired muscle from deep within.Good to know- With 5 swappable muscle heads, you can choose each one to target different muscle groups- 3 hours of runtime means you won't run out of juice halfway through your massage- The carry case makes it easy to take it on the move