Because your baby may not be in the best-of-moods to accommodate an under-the-tongue temperature check, the Tommee Tippee 2 in 1 Thermometer helps you take a quick, easy, and accurate measurement, either under the tongue, or armpit. __Benefits:__ - 2-in-1 thermometer so you can use it either under baby\'s tongue or underarm - Small, lightweight, and waterproof, making it ideal for travel - Fast 8-second reading for your immediate peace of mind - Fever Indicator, so you\'ll know for sure - Memory function, stores the last 25 readings (because baby brain is a real thing) - Helps you keep an accurate eye on baby\'s health