A: This actually requires 1 9v battery which is easy to find in the store! I love this thermometer. It reads the temperature quick (within 1 degree difference of other thermometers) which is great when dealing with a fussy sick baby.
A: You can actually turn off the beep so that it is silent. It is one of the settings. Hope this helps!
A: it's normal batteries, i forgot it's AA or AAA. However, i don't recommend this thermometer for babies. It constantly beeps LOUDLY when you are taking the temperature and it kept waking my sleeping baby up! and the reading isn't even correct!
A: Yes, you do. Just hold the button as you gently swipe it across the forehead and there you go!
A: Yes. We used this for all my kiddos.
A: Hold the button down until it shows C and F, then choose the one you want and let go of the button.. Hope this helps.