Percussors - Thumper Mini Pro - Professional Portable Massager : It is the number one choice among professionals athletes and trainers. The Mini Pro is a professional strength massager in a personal, portable size. With two massage spheres and weighing only 3 lbs., Thumper Mini Pro delivers the strongest and deepest percussive massage available in a self-use model. Three electronically controlled power settings allow the user to adjust the massage for all muscle groups.