The features of the PlayMakar SPORT make it versatile and portable without sacrificing power. This system comes with 10 pre-set programs designed to help improve the quality of muscle warm-up, build strength, assist recovery, maximize endurance, and manage pain. Implementing these tools in a solid training regime can give athletes the competitive advantage they need to achieve their personal best. | Ireliev | | SPORT TENS + EMS Muscle Stimulator | Black | Best Buy