A rechargeable massage gun is a handheld, cordless device designed for deep tissue percussion therapy to relieve muscle soreness, stiffness, and tension. Powered by a lithium-ion battery and high-torque motor, these devices deliver rapid vibrations (up to 3600 RPM) to enhance blood flow and aid recovery. Typically featuring multiple interchangeable heads and adjustable speed settings, they are commonly used for post-workout recovery.