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I don't know if this was in the product description, and I just missed it, but the player itself has no built in memory. It requires a Micro SD card, which it doesnt come with. Luckily, my mom came to the rescue with a spare SD card, so I don't need to return the product. As for the player itself, it's nothing super special, but it had more features than I was expecting at this price. It has one small puzzle game, called BoxMan, can support a variety of different file types for music, videos, and even Ebooks. It also has FM radio. It does not come with instructions, only a FAQ and a small diagram of what the buttons do, but the device is straight forward enough that it doesnt really need instructions. All in all, I'm satisfied for the time being, but we'll see how it holds up with daily use.