The Pulseroll VYB Duo is a scientifically proven vibrating peanut roller used by professional athletes, physiotherapists, the military, and the elderly. It can be used on almost any part of the body to work out tired muscles. Its small size makes it easy to travel with. The peanut roller fits comfortably around the targeted muscle, and its vibration technology stimulates blood flow and reduces soreness in the muscles of your hip, lower back, and thighs. It offers 4 speeds (3 active speeds and 1 pulse mode) and has a battery life of up to 6 hours. The roller is rechargeable and comes with a thumb remote control, carry bag, charger, user manual, and warranty card.