This device is junk. It gives multiple readings that are all over the board, from 99 to 103 within minutes. After purchasing it, I found out it uses your phone and supposedly projects sound waves to read the temperature. I'm very disappointed with it as I've taken my daughter to the doctor based on multiple readings of 102 to 103 only to find out she was barely over 99 when we got to the doctor.
Bottom Line: No, I would not recommend this to a friend