Cramps don't negotiate. Steady, adjustable heat and soft massage vibration, held exactly where it hurts and staying put.

The belt sits snug against your lower back or abdomen, so nothing needs holding in place and you don't have to lie still to feel it. Rechargeable and fully cordless: wear it at your desk, in the car, on the sofa, or under your clothes if you'd rather nobody knew.

Light, quiet, and shaped to disappear under a jersey.

Just as good for lower back ache, muscle tension, and the general business of a long day.