Measured body temperatures range from 32 to 42.9C . it will also measure room temperatures from 5 to 59.9C Talking functions can be enabled and disabled as required at the press of a button. The thermometer will also speak room temperature and the current time if prompted. The thermometer is supplied with two AAA batteries already fitted in place. Please note that sighted assistance may be required for initial set-up of the thermometer. Specifications: Measure body temperature from ear or forehead in Celsius or Fahrenheit. Readings announced in a synthetic female American voice. Time and date displayed in 12-hour clock mode. Maximum 30 sets of temperatures stored for up to 30 days. Size: 160 × 110 × 47mm. Weight: 131g.