Built from the same SureBP algorithm used in multi-parameter, hospital-grade monitors, the Welch Allyn Home Blood Pressure Monitor is an easy-to-use device that enables patients to capture accurate readings from the comfort of home. Captures blood pressure in about half the time as the leading competitor, making the reading capture more comfortable for patients. The free smartphone app lets patients store and track their readings, so they can monitor their progress. The app seamlessly connects to the blood pressure monitor using Bluetooth 4.0 technology. It is no wonder 95% of physicians surveyed would recommend a Welch Allyn blood pressure device over comparably priced options.2 Trusted in the doctor's office, made for the home., The Country of origin is The United Status of America.Powered by four AA alkaline batteries (included)