Wave roller™ the wave roller™ delivers the most powerful and efficient foam rolling experience, whether you're in the comfort of your home or at your local gym. The smart vibrating foam roller is bluetooth enabled with five intensity settings, which allow you to tailor both your warm up and recovery conveniently from your mobile device with the therabody™ app. Smart device with bluetooth connectivity tailor your warm up and recovery conveniently through the therabody app. 5 speeds 5 intensity speed settings for a customized experience. 3 hourbattery long lasting 3 hours of battery life for sustained use features bluetooth connectivity 5 speed settings for a customized experience 3 hour battery life for sustained use wireless charging enabled 30 cm long for full body treatment hypo allergenic eva high density foam for full body support in the box charger carrying case