The Mobile Medic is indispensible in a sports first aid kit. It provides fast pain relief, promotes local circulation which reduces inflammation and swelling, and reduces cellular trauma which accelerates recovery. The portable, battery powered Mobile Medic provides fast, long lasting relief for a wide variety of sports injuries, whether fractures, sprains, bruises, muscle strains, or that most common cause of sports pain, overuse of muscles. It has been used for decades by professional sports teams and weekend warriors to recover quickly while minimizing pain; it gets athletes back to action fast. Kentucky Derby-winning thoroughbred horses and Olympic competitors have gained the winning edge with this amazing technology. Battery powered and weighing just 12 oz, it provides fast relief wherever you need it. 90 day unconditional guarantee.