INFRARED HEAT FUNCTION (might take several sessions to heat up) - Improve blood circulation, relieve muscle tension, tired feet, neuropathy, chronic nerve pain and plantar fasciitis by turning on the heat function. ADJUSTABLE INTENSITY - Whether you just want an easy relaxing leg massage, or a deep tissue shiatsu kneading massage - you can easily adjust the intensity of the message and choose between 3 different pressure levels! SHIATSU MASSAGE & AIR COMPRESSION - 2 independent foot chambers provide a wonderful combination of shiatsu kneading and rolling massage therapy, while the air pressure applies pressure to all parts of the foot.