Perform self-massage before and after training with the Therabody Wave Roller smart vibrating foam roller. Bluetooth connectivity enables easy programming via the Therabody app, letting you create warm-up and recovery routines of varying intensity. This hypoallergenic Therabody Wave Roller has five-speed settings to suit different comfort levels. Key Benefits & Features High-density foam for noise dampening. Smart device with Bluetooth connectivity. 5 customizable vibration frequencies. 3-hour battery life for sustained use. Hypo-allergenic surface. 12inches for full-body support.