Why Vigorun Forehead Ear Temporal ThermometerUpdated High-accuracy Probe Advanced sensor technologies deliver more reliable results and ultimate safety for usersSmart Chip The latest built-in smart chip will ensure the excellent performance of the thermometerBest Choice for Baby Temperature measurement can be so easy without waking your baby up, no beep in mute mode and backlit LCD enables clear reads even in the darkIntelligent Light Indicator for Fever Get better noticed of your temperature, urge you to take corresponding actions / Switch Easier way to achieve / conversionLong-time use Energy saving system and 2*AAA batteries enable uses more than 3000 times35 readings recall More data recorded to help you better track the trend of body temperatureSpecifications: Size: 120g ,163.3×39.2×38.9mm Power: 2 x AAA batteriescan be used for more than 3000 times Operating Conditions: 50°F to 104°F (10°C to 40°C); Measurement Range: 89.6°F-109.2°F (32°C-42.9°C) Measuring distance: 0.4in-2.5in(1-6cm)Packing content: Vigorun Forehead and Ear Thermometer Two AAA Batteries Portable Pouch User Manual