Beautiful battery powered variable gain Dodd Audio preamp. I have never heard another that sounds better and it will outclass units costing many times more. If you are looking you know what you are looking at. Shipping the battery makes no sense due to weight. I think it ran about 40 bucks when I bought battery. I have had this piece stored away waiting to set up with a new dedicated system. I previously used it with Magnepan 3.7 and various amps. There truly is no purer sounding tube preamp design that I have ever heard and item is one of a kind. Thanks for looking and hope whoever takes it enjoys it as much as I have.