Kinyo’s DS-350 Portable USB Flash Player is a basically a no-frills portable speaker system designed primarily just to play music off of USB keys. There are many other big speaker systems with USB ports, but this is the first small system we’ve spotted with one. The system supports MP3 and WMA files, and it has 6 different equalizer modes. Aside from USB keys it will also play music off of ipods, Mp3 players, CD Players and most other ...