Cordless state-of-the-art vibration massage device that helps relax sore and stiff muscles to improve mobility. As featured in GQ, CNET, Runner's World, Self, Men's Helath as the top tech in health and wellness. Powerful high-torque motor featuring Quiet Glide technology with 4 interchangeable head attachments. 3 speed settings deliver up to 3200 percussions per minute. Rechargeable lithium-ion battery (Up to 3 hours of use per charge).