This is a very, very easy to use, right out of the box Blood Pressure Monitor ! It comes with the triple AAA batteries, so easy enough to put them in, and just put the cuff on your left wrist, hold your hand palm side up at the level of your heart, push the Start button and let the cuff do its job ! It will give your pulse rate as well as your blood pressure, and what I really, really like is that it has a memory so you can scroll through and see your numbers and keep an eye on it !! I love this Blood Pressure Monitor especially because its Very Easy to Use !!