Karlotta Nose Hair Trimmer Functionality confirmed (January 22, 2025) Used once, wiped with a disinfectant wipe and stored. Requires one AAA battery. Batteries are not included. Please prepare your own. *The outer part of the battery cover comes off. Please refer to the 4th and 5th photos. There is no problem with the operation or installing the battery. This is a used item. Please refrain from purchasing if you are looking for a perfect item or are very sensitive to details. If you have any questions, please comment before purchasing.