Prima Harmony Trainer SQH-379 Harmony Trainer This is a used item. It does not come with an adapter. I tried using batteries, but I didn't have any new ones, only used ones, so the power didn't turn on. This is a junk item with unconfirmed operation. The included items are all shown in the images. Please check the images for details. This is an as-is item. *Please understand that this is a used item before purchasing. *I will pack the item carefully, but please forgive me as I am an amateur seller. Shipping will be via Mercari. It will be the cheapest shipping method after packing. The price includes shipping, so I apologize, but I cannot offer a significant discount.