I haven't used it for a while and tested a few readings a day in the last few days, and everything works as it should. You will need 2 AAA batteries, not included. Please check the wrist guide size on their website or YouTube to make an idea how big the device is. Comes boxed with all booklets. The outer box is a bit scuffed because it was moved around when I was doing the cleaning. You will need the Braun Healthy Heart application installed on your smartphone. Any other questions, feel free to ask.
