If I could give this 0 stars I would but lets just say it can have one for the nice case it comes in.I used it once and couldn't figure it out. Plus the batteries crapped out after I played aound with it few times just to figure out how to use it.So I sent my husband to the store to pick up a regular thermometer. The doctor thanked us for using a rectal thermometer instead of an ear one. I guess the ones for the ear don't read right. Plus they cost about $20.00 unlike a regular one for about $3.00. My daughter does surprisingly good with a rectal one.DO NOT waste your money on this expensive thermometer!!!