Only available from Hammacher Schlemmer, this is the wearable cordless device that combines electrostimulation with heat therapy for drug-free relief of neck stress and tension. Using electronic muscle stimuation (EMS), an approach widely embraced by physical therapists and medical professionals, it delivers harmless electrical pulses to the neck muscles to encourage circulation and muscle stimulation. Its heat setting delivers soothing warmth up to 118° F that helps loosen knots and speed up circulation to relieve neck pain and stiffness. The unit fits comfortably around your neck and lets you create customized treatment sessions by selecting from five modes, 12 intensity levels, and three heat settings. Charges via USB. Not for use with pacemakers.