Blood Pressure ordered for my mother who is hypertensive and regularly monitors its voltage. First positive detail, the device comes with 4 Duracell batteries. Second positive detail, a storage case is provided. Third positive, hyper detailed instructions are included (no need to go online to download a more or less well done manual ...). Now to the product itself. It is a cinch to use. You plug the inflation tube, the cuff is adjusted on the left arm and pressing "Start". After a few seconds, it gives us 1 / systolic blood pressure (first number) and 2 / diastolic blood pressure (second number). It also measures heart rate. As soon as there is a small problem (badly positioned cuff, constricting clothing, movements during measurement, etc.), an error message appears. You'll understand that this monitor is really simple to use and can be easily used by the elderly. I highly recommend. (ServaneL.)