Ergonomically designed for comprehensive physical therapy massage on dual knees or legs and reduce stress on sore knees or stiff legs, improve muscle flexibility, and soothe knee discomfort. Compression massage on knees or legs with two selective automatic massage modes and its dual control board on top and side panel makes possible for reversible use for leg massage. Vibration massage and heat therapy create flow in lower body and release tension around knees. Heat therapy with two selective temperature levels and compression massage, vibration massage, and heat treatment can work alone or simultaneously. Built in tablet and mobile phone slot let you enjoy the comfortable massage while entertaining eyes from smart phones and you can move around with ease with its built in carrying slots.