The TheraCove Foot Warmeris the most versatile of the Shield Life Family of Products. It provides therapeutic relief to aching feet, and the magnetic warming pad can be slipped out of the cove to act as a seat or back warmer. It is composed of 5 layers of technology and comfort, including a soft, anti-microbial, and water-resistant top layer.30 Powerful Magnetscreate a grid of wellness surrounding your feet.Electromagnetic Field (EMF) Shielding Technologyeliminates up to 90% of harmful EMFs. Shield Life's patented EMF Shielding technology allows for maintained and rejuvenating rest.Far Infrared (FIR) Heat and Negative Ionsgenerated by the TheraCove maximize comfort. Through absorption of FIR heat, muscle tissue is safely and gently stimulated to bring you to a new level of wellness. The TheraCove offers 3 levels of FIR heat that warm only desired areas.Rest Assuredknowing you'll enjoy the benefits of negative ions year-round with the TheraCove, which is hand-crafted in Korea with the finest materials and most advanced components. Continuous heat sensing technology and an automatic 10-hour shut off period ensure the ultimate in sustained and comfortable rest.