This vintage Casio CQ-2 calculator is a great addition to any collection. With its classic design and functioning buttons, it is sure to impress. This calculator is perfect for those who love vintage technology and want to add a unique piece to their collection. It has been tested and confirmed to be in working order, making it a great option for those who want to use it for its intended purpose as well. Don't miss out on the opportunity to own this piece of history.