Updated 08/11/2022 - I've added photos of the unit working, it takes two LR44 batteries (pictured but NOT included) worth mentioning that the battery compartment is a tight fit when batteries are inserted, as seems to be common for many Game & Watch units, so a very small, flat-head screwdriver or similar implement may be required to carefully remove the battery compartment again after use, as you can see, there are some marks around the battery compartment, as this can be a tricky process. This item is in the category "Collectables\Vintage & Retro Collectables\1980s". The seller is "azel_auctions" and is located in this country: GB. This item can be shipped to United Kingdom.