VERSATILE THERMOMETER: Can be used to check temperature via forehead or remove the cap and then use to get temperature via ear canal which is mostly required in case of kids. Comes with complimentary 2x AAA batteries so that it's ready to go. USED FOR ALL AGES: This thermometer is a non-contact infrared temperature thermometer that doesn’t require skin touching and will provide readings from 1-3 cm distance which is not only convenient but safe as well. Can be used for infants, kids, youth, adults, and seniors. MULTI-USE: This device not only measures the human body temperature but can provide the temperature of an object. Just switch the mode and that’s it.