Patented pressure sensor (3 levels), Lightweight design (3 lbs), Cordless – 2.5+ hour battery life, Travel-friendly (TSA approved carry-on). 3 speeds, Removable battery / handle, Brushless high-torque 90w motor, Patented QuietGlide technology. Sensor technology. The Hypervolt Plus features a patented pressure sensor with three levels, giving you a digital indication of how much pressure you're applying. Hours of power. With 30% more power than the original, the Hypervolt Plus delivers three speeds of long-lasting and powerful percussion. Plus up your game. The Hypervolt Plus set the standard for premium percussion massage devices. Seriously strong, aesthetically sleek, and unbelievably quiet - it's the added boost your muscles need.