pbm HEALING Healing Invisalign Orthodontics Light Acceleration Device Purchased at a dental clinic. Normally, the aligners are changed every week, but with this device, they can be changed every 3 to 5 days, shortening the orthodontic treatment period. The user is a non-smoking woman in her 30s, with no periodontal disease or cavities, and no pets. Operation confirmed. All LED lights are working. All accessories are included, such as the battery, charger, cable, instruction manual, and box. Everything in the photos is included. It has been used, but it has been disinfected. The plastic case, in particular, shows signs of use. Please understand that this is a used item before purchasing. □ All accessories are included as shown in the first photo. □ Operation confirmed (see image 5). □ Used by a non-smoking woman in her 30s.