Get back in the game more quickly without the worry of stiff muscles. The Sharper Image Powerboost Massager is the post-workout recovery tool you need and the muscle repairer you deserve. This state-of-the-art massage gun uses percussion to target sore muscles and tight knots, helping you unwind after a long workout. Change the strength of the percussion to suit your body's needs and help break up lactic acid before your next workout. The nodes loosen tight or stiff muscles to reduce soreness and get you back in the game quicker. And it's whisper quiet with low vibration on the ergonomic handle, so it's the most comfortable massage gun you'll find anywhere. Take it with you to the gym, on vacation, or to your next game.