 Are you experiencing muscle pain or tightness anywhere on your body? Try the Rapid Release Therapy Cordless Pro 3. The Cordless Pro 3 is a targeted high-speed vibration therapy device used by medical professionals to quickly relieve a wide variety of aches and pains. After years of development, the Rapid Release Therapy Cordless Pro 3 is the latest in rapid release technology. It's more powerful, quieter, and lightweight with a long battery life, and best of all, it's cordless.