This is a junk item, the original Game Boy handheld console made by Nintendo. The board is marked DMG-CPU-06 when viewed from the battery box side. This is a junk item, and returns are difficult due to the following issues. The main unit works, and the contrast adjustment, volume control, and buttons function without problems for gameplay. However, the exterior condition is poor, with the plastic part on the front of the LCD screen detached, and there are many yellowing and scratches. The LCD screen shows circular degradation as shown in the image. Also, operation with earphones, communication cables, and AC adapters has not been confirmed. The included software is as shown in the image. These are playable, but the condition is poor, and some have cracks, so please be sure to check them. If you have any other concerns, please message me. Only the main unit and software are included; there is no box or warranty.