This is an improved-sphygmomanometer. Machine base has three wheels that make it can push anywhere more convenience. The cuff of this machine can be adjusted vertically to fit anyone who is sitting on the chair of different height. You can put your phone on the top of sphygmomanometer to connect the machine which will upload your measurement data on the APP by Bluetooth. Compared with traditional sphygmomanometer, it is more beautiful and high-quality.