The main unit, AC adapter, and remote control, a total of 3 items. Everything shown in the photos is included. The instruction manual is not included. I obtained this to check what kind of product it is, but I have finished checking its operation, so I will sell it to someone who needs it. ⚪︎ It powers on, and settings can be configured. ⚪︎ I cannot answer questions about how the device works because I do not have the knowledge. Please Google it. ⚪︎ The device will be initialized before shipping. ⚪︎ It will be disinfected with alcohol and wrapped in bubble wrap before shipping. Please understand that this is a used item and has been stored at home before purchasing.