Moderate & Popular modelLeg is the second heart!"It is a pump pushing blood upto the heart during working"FeaturesDoctor Life (FDA, CE, ISO9001, SFDA, UL) can be used by anyone desiring healthier life as well patients. Our representative brand, Doctor Life is being exported to above 30 countries. We are proud of high quality, design and ecomnomic price of Doctor Life.Specifications Pressure range: 50 ~ 220mmHg Time: range: 0 ~ 30m