1. Support Mp3/WMA formats;
2. Built-in FM transmitter with frequencies: 87.5-108.0mhz.
3. Current frequency saved while power off;
4.12V~24V Power supply.
5. Flash memory built-in from 256MB--4GB;
6. Small and exquisite and easy-to-use design--consist of two parts. One part is just " computer's USB port", another part is just "portable USB disk". All is just like you insert USB disk into PC and remove from the PC!
7. Infrared remote control: Digital selecting frequency.