Ergonomically designed to provide comfortable treatment for the back, spine and neck, this portable smart vibrating roller is a uniquely versatile rolling solution. Five powerful vibration frequencies and innovative wave texture work to deliver just the right angles of pressure to areas in need - releasing soreness, reducing tension, and improving movement. From shape to material to added vibration, the Wave Duo is scientifically calibrated to elevate your rolling experience. Key Features: Ergonomic shape: Curved design to comfortably apply pressure to the unique curvature of your low-mid back, upper body, neck, and more. Textured wave grooves: Adds traction control and works the muscle with varied angles of pressure. Hypo-allergenic textured silicone: Ideal for noise dampening and a smooth, quiet roll. 5 vibration intensity settings: Vibration settings can be adjusted to your comfort level to help release soreness, reduce tension, and improve movement. Bluetooth connectivity: Connect to the Therabody app via Bluetooth and discover guided warm-up and recovery routines specifically tailored to your needs. USB-C enabled: Easy charging solution. 200 minutes battery life: Long-lasting battery life for sustained use WHAT\\\'S INCLUDED Wave Duo Protective carrying pouch USB-A to USB-C cable