This is a SEKONIC STUDIO DELUXE light meter. A case is included. I don't know how to operate it, and I haven't been able to check the measurement button, etc., so I'm selling it as a non-working junk item. This light meter does not use batteries. The exterior has scratches, small marks, and signs of use due to age. Please check the condition in the photos. Due to being a junk item, there is no guarantee of operation. Please purchase only if you understand that it is for repair, parts, or collection purposes.