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. Bluetooth connectivity to the Therabody app for guided warm-up and recovery routines specifically tailored to your needs. Textured wave grooves add traction control and work muscles with varied angles of pressure. Hypo-allergenic textured silicone, ideal for noise dampening and a smooth, quiet roll. 200 minutes of battery life on full charge. Includes Wave Duo, protective carrying pouch, USB-A to USB-C cable. Dimensions: 7"L x 3.9"W x 2.6"H. Manufacturer's 1-year limited warranty. Silicone.