Lightweight design (1.8 lbs), Cordless – 3 hour battery life, Travel-friendly (TSA approved carry-on). 3 speeds, Brushless high-torque 60w motor, Patented QuietGlide technology, Patented pressure sensor (3 levels). Recovery, on demand. Integrated with HyperSmart, it's easy to find the warm-up and recovery plans that will help you feel and move better with step-by-step expert guidance through the Bluetooth connected Hyperice App. Whisper quiet. Don’t pause your music or your favorite show. Our patented QuietGlide technology will have you saying “ahhh”, not “shhh”. Better than ever. The Hypervolt 2 has an improved ergonomic and lightweight design that helps you feel better faster so you can get back to doing the things you love.