Lifelong LLM189 Rechargeable Knee Massager comes with heating , vibration and air pressure massage for relieving pain from your knees. This massager increases blood and oxygen flow to the joint, resulting in pain relief and faster healing. It is designed for those who suffer from knee pain. You can Choose the temperature levels in this knee massager. Eliminates inflammation, reduces Oedema and stiffness in the tissues thereby providing instant relief from agony. You can turn off vibrations on your using a button.Air Pressure: 30-50 kpa5 Vibration Intensity Levels2 Temperature Levels: 45 Degree and 60 Degree CelsiusMassager Method: Vibration, Heat and Air PressureKnee Massager.