1. AC110V-220V 2. Material: ABS and stainless steel 3. Function: shiatsu + airbag + heat + handle easy carry + remote control. 4. Air bag massager in rear & heel part 5. 9 level strength air press adjustable 6. 5 modes of shiatsu, airbag massage. 7. Independently model only airbag no shiatsu and vibration function can be chosen. 8. Rolling Shiatsu massage soothes and invigorates bottoms of feet 9. Kneading air pressure relieves tightness on tops of feet and ankles 10. Simple to operate—On/Off button, choice of high and low intensity 11. AUTO-STOP timing: 15mins, 20mins, 25mins, 30mins, 5mins, 10mins can choose 12. Heat with high & low: 45° & 50° 13. Leg control button: 3 levels airbag control