... .negative oxygen ion 3.Dimensions: 900X680X1250mm Crazy fit massage Description: 1) Maximum power: 200W2) Speed range: 8.10.20 ... 150kgs 4) Readout: time,speed,body fat,figure-improving belt,saddle massage,negative aygen ions,foot-bottom magnetic wave 5) Function: ... oxygen ion,figure-improving band,foot-bottom magnetic wave massage, magnetic wave massage of hand-held rod,pedal swinging and vibration. ...