Airwave Therapy Technology QUINEAR Full Leg Massagers for Circulation and Pain Relief Upgraded Air Compression System inflates within 70s13*2 Large Airbags 360 ° All Around Wrap3 Intensities 3 Massage Modes Optional20 Mins Automatic Power-off Safety Protection DeviceCutting-edge Air Physiotherapy Compression Technology The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Enjoy your Relaxation Better QUINEAR Air Compression Therapy Massager QUINEAR Leg Massager mainly uses the the airwave pressure therapy, it mainly inflate and deflate the multi-chamber airbag in order to form a circulating pressure on the limbs and tissues, and evenly and orderly squeeze the distal end of the limb to the proximal end of the limb to promote blood and The function of lymph flow and improvement of microcirculation accelerates the return of limb tissue fluid, helps prevent the formation of thrombus, prevents limb edema.