Management number: a007 Infrared operation confirmed. Ready to use immediately. Simple cleaning and alcohol disinfection performed. Batteries are not included. As this is a used item, there may be signs of wear and tear, scratches, and rust due to age. Please be sure to check the images and purchase only if you are satisfied. Please refrain from purchasing if you are looking for a perfect product. No price reductions! Instant purchase OK. Thank you.