Delivery by Amazon was quick and easy. The device makes a stable, high-quality impression. It is up to all expectations. Easy to use: easy to put the cuff on the upper arm, press button and after a few seconds you have the result of the legible, easily understandable display. The measurements are easily and easily repeatable. Particularly interesting and informative: if you retrieve the automatically saved results of previous measurements, the device first displays the average value of all stored measurements on (this informed me of my average blood pressure / pulse over an arbitrarily long past time period, eg Durchnitt from last month) , The unit is expected to provide highly accurate, reproducible measurement results. I highly recommend this blood pressure / heart rate monitor Recommend unconditionally