Sustained Acoustic Medicine (SAM), developed by ZetrOZ Systems, provides safe, effective pain relief from many common soft-tissue injuries. Approved by the U.S. Food & Drug Administration, sam 2.0 is a long-duration, wearable ultrasound device that accelerates the natural healing process and reduces acute pain associated with tendon, ligament, and muscle injuries without the need for surgery or powerful pain medications. It delivers continuous ultrasound treatment at 1.3 watts of energy treating deep tissue down to 5cm. The continuous, low-intensity ultrasound therapy inhibits inflammation while increasing the rate of tissue regeneration, angiogenesis, and nutrient exchange in deep musculoskeletal tissue. The device is user friendly, convenient, and approved for home use.