1.It uses air pressure method for massage, it can help you relieve fatigue and tension, relieve pain2. FOOT AND LEG MASSAGE - This air leg massager is used to massage your feet and calves, internal air bags, compress your feet and calf muscles from bottom to top to relieve fatigue and improve blood circulation. Relieve restless leg syndrome, leg edema, swelling of the legs and feet.3. Air massage avoids the risk of electric shock and burns, the massage speed and heart rate are similar, so feel more relaxed4. Just pull the plug can be deflated, the pressure adjustment knob can easily control the pressure, the treatment time can be set according to the physical condition5. Adapt to the crowd: It can relieve symptoms caused by chronic venous disorders such as neuralgia, frozen shoulder, seq uelae of numbness in hand and footthe description:1. When wearing the lower limb s leeve, please remove the contents of the trouser pocket and use it, otherwise the body will be wounded or suffer sleeve damage, please wear it. In use, the zipper may slide down. So please put on something clo and do not use it on exposed body2. Turn on the power and turn on the power switchReady to set time according to your needs (30 minutes or less)specifications:Pressure range: 20-235 hgTime adjustment: 0-30 minutesRated voltage: 220VRated power: 30Wthe colour bluePlug type: US plug, EU plug