Product details:
The Cordless Wrist Heat Therapy Wrap uses Far Infrared Ray (FIR) heat to melt away chronic pain. And, it doesn't get red hot to the touch, so it's safe for those with sensitive skin. Experience up to five hours of soothing heat on a full charge (up to 140F). Features four heat settings, plus soft, stretchy fleece material, Velcro straps and automatic safety shutoff. Fits on left or right wrist. One size fits most.