The ear or forehead baby thermometer is easy to use. You can do it in the ear or across the forehead . It is easy to read the readings. There are only 2 buttons, F1 and F2. Just hold button F1 to scan the forehead temperature and hold F2 for ear. Also it will keep track of the last 20 readings. This takes 2 AAA batteries and they are included. This is awesome to have when you have little ones it is easy and fast and they will never know you took thier temps. It is made well, great quality and would be great to have if you have kids.