Feel yourself unwind in the infrared heat.
It combines five natural therapies: hot stones, far-infrared light, red light, pulsed electromagnetic fields (PEMF), and negative ions. LED Display Controller: Time and Temperature settings, 3-6-12-hour auto shutoff timer Number of layers: up to 21 functional layers Materials: High-quality, nontoxic Voltage: USA power 110-120V (available in 220-240V upon request), 220W 13 lbs of natural amethyst gemstones; 33 tourmaline ceramic gemstones, 30 natural jade gemstones Hand wash. Lie back as the amethyst, tourmaline, and jade gemstones warm up against your skin.