Brazillian pirate Megadrive clone. The Ad Loosley translated:
"Compatible with all 16-bit cartridges. With two joysticks included. You have a Songa for your little siblings, why not for you also? The ultimate experience in: Family, Sega, 3-DO, Saturn, and Playstation. All the best titles and accessories. And the best price out there....for you!"
As you can see I speak the language rather well.