Lee Custom Amplifier / 12AU7 Tube Buffer / Booster (12AU7BB) Includes the main unit, original box, and instruction manual. Functionality has been confirmed. The original box has some dents. Please consider it as packaging only. Please check the appearance of the main unit in the images. Since this is a check by a non-professional, not all functions have been verified. Please understand that this is a used item before purchasing. Negotiations for a price reduction are possible for those who are serious about buying, but the amount will be very small.