Q-Scan Plus is an intraoral observation device equipped with a high-intensity LED and a special filter that emits blue light. You can observe plaque and tartar at home. This device is useful for checking the hygiene of your mouth and for early detection of cavities. Be careful not to shine the light directly into your eyes. Unused. The list price is over 40,000 yen. ■ I am not a specialist, so I do not know the details. Please purchase only if you can judge from the images. I don't know the details, but I will answer your questions to the best of my ability. ■ Please refrain from purchasing if you are overly concerned about details. The product will be delivered as is. ■ Returns are not accepted after purchase, so please understand this before purchasing. Only those who can make a smooth transaction are welcome.