When aching muscles hit hard after a run or marathon session at the gym, hit back harder with this Active Sport Percussion Massager. This compact deep tissue massager gun uses a rhythmic motion to loosen tension and ease the tell-tale tightness that follows strenuous exercise. The speed of this massage gun can also be adjusted from gentle to very firm, ready to tackle the toughest knots. This massager also includes three attachments and a rechargeable battery, so no fussing around with trailing cables.