Myovolt is the pioneer of Wearable Vibration Technology - a patented, research-backed targeted vibration treatment engineered to fit the body. Myovolt is not only effective as a muscle warm-up device, but it is a unique technology for muscle recovery too. DESIGN & DETAILS: Focused Vibration Therapy - This vibration back wrap helps reduce pain, stiffness and general sorenedd High Performance Motors - Deliver targeted deep tissue treatment and optimal warming Three Treatment Modes - Wave: Great for Muscle Recovery Pulse - Great for Recovery, Flexibility, and Range of Motion Great for Muscle and Joint Warm Up Easy to set up and put on Can be worn under or over clothing, Lightweight, flexible design won't restrict movement USB Rechargeable