I have a simpler model; no bluetooth or color screen, but it has a microSD card slot. 4GB base memory, with a 16GB card in it. I think it was about $20 when I b

I have a simpler model; no bluetooth or color screen, but it has a microSD card slot. 4GB base memory, with a 16GB card in it. I think it was about $20 when I bought it years ago, and it's still going.