J2 Foot SpaThe heating element of this foot bath massager heats and maintains water at selected temperature (95-118F) efficiently, without hassle of filling hot water or temperature dropping, offering luxury hot foot soak to keep your feet toasty and hydrated for reduced fatigue and swellingRaise foot pampering experience up a notch by jacuzzi-like bubbles (recommended to use with heating function simultaneously) that stroke soles and by rhythmic vibration that loosens stiffness, effectively easing tension and stress.