Auto Shut-Off: Preserves battery power. Switchable: Reading available in degree F or degrees C. Convenient: Storage case keeps base and multiple tips together when not in use. Interchangeable probe tips are a hygienic solution to prevent cross-contamination. They may be used by multiple family members, or for multiple body measurement locations. For use orally or under the arm. Contents: 1 Digital Thermometer, Instruction Booklet, Storage Case, Mesh Dishwasher Bag, Replaceable Battery.