Zetroz LLC was founded in 2009 and is based in Trumbull, United States. They produce bioelectronic devices for the delivery of sustained acoustic medicine. They have designed ultrasound platforms that treat acute and chronic musculoskeletal conditions. Their products include: Sam sport and Sam professional. Sam sport is a medical device used to reduce the pain with tendon, ligament or muscle injuries and accelerate the natural healing process. Sam professional is a medical device that delivers drug free pain relief for the treatment of chronic musculoskeletal conditions.