The Hyperice(R) Venom Back is a cutting-edge, digitally connected, wearable back device that uses heat and vibration to warm up, loosen, and relax sore and stiff muscles. Product Features Digital touch screen allows temperature, vibration pattern, and time customization Used by athletes to stay loose during a practice or game Plush neoprene wrap allows you to adjust the fit to your liking Nanotechnology heats the VENOM within 90 seconds 4, 1" Vibration pods featuring three different vibration settings Additional Details 1 year warranty