Please see the home site for information on the functions of A-ONE Lite. ○ Model Number A-ONE Lite ver.2.20 〇 One-Click Automatic Facial Measurement System 〇 A convenient system that allows automatic measurement with a single click. 〇 Captures two images: general and UV. 〇 High-resolution camera and EM sensor measure four skin items. 〇 Measurement items: pores, oil, wrinkles, pigmentation Automatically recognizes eyes, nose, mouth, and eyebrows. Automatically divides and measures U-zone and T-zone. 〇 Included items: Main unit, connection cables for the computer A-One LITE dedicated USB Scanner unit, skin diagnosis program CD-ROM, USB lock key, USB cable, power cable, Watari-ha x2 Although there is no instruction manual, the above items are all included. You can find instructions on how to download the app on YouTube, or you may be able to read the manual on your computer. Also, the manual that can be read on the computer is not available in Japanese, so I proceeded using Google Translate. I received this from someone else. I have used it only about 3 times as I haven't had many opportunities to use it. The app download and the machine are working properly. Please understand that this is a used item and has been stored by a private individual.