The thermometer beeps when switched on and when it is ready to take measurements. Set in a pleasant tone with a comfortable volume level and should therefore not even bother with a headache. In addition, I consulted an old thermometer for temperature comparison and could not detect any serious deviation. So I would say that it works pretty accurate. In addition, it has a flexible rubber tip that will not affect cold.
Here again is a summary:
+ Fast
+ Easy to use
+ Flexible tip (recommended for young children)
+ Precise
+ Pleasant rubberized tip (not cold)
+ Good case to hold this
+ No loud beeping noise
- No negative anomalies
Summary: It Works easily, accurately and quickly with good price / performance ratio. I am happy. 5 Stars.
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... Addendum: I have bought a second time for my parents the same thermometer. I am very pleased.