Intensive and comprehensive, the high-intensity vibrating Hypersphere can be used for trigger point release on your tightest muscles so you can recover faster and move better. BENEFITS – Accelerates warmup and recovery, Enhances muscle performance, Improves range of motion and flexibility, Reduces muscle soreness and stiffness. TECH FEATURES – Digital circuitry control, 3 speeds, Rechargeable lithium-ion batteries ( 2+ hrs of use per charge), Dual exterior for grip and balance, TSA approved for carry-on.