1， the product designed specifically for infants and young children， adults can also be used， as compared with traditional mercury thermometers， safer， faster and more accurate.2， the power supply voltage: dc1.5v， battery life: about 3 years (in one day with 10 minutes)， you can replace the battery， ensure long-term use.3， with voice prompts， memory function.4， measuring range: 32.0 ~ 42.0 ° c， measurement accuracy: ± 0.1Instructions1， before use， you should use alcohol to disinfect thermometer sensor head2， press the power button， the buzzer will beep， display prompt3. Subsequently， the display shows the last measured temperature， and wonderful for 2 minutes， then display ° C Symbol flashes to indicate that the test has been in the state4， the thermometer sensor head into the measuring position， the display shows the temperature gradually rises. Meanwhile ° C Symbol flashes to indicate that the measurement is in progress. Measurements such as temperature constant for 16 wonderful， the ° C Symbol stops flashing， indicating that the temperature measurement is completed and has memory measurements， you can read the display temperature value5， after the measurement， if not pressing the power button to turn off the power， then automatically shut down after 8 minutes