1. Support Mp3 WMA, ASF, WAV MUSIC format playback
2. Super record function
3. Mass storage, USB High speed
4. Built in Flash memory (128MB/256MB/512MB/1GB/2GB/4GB)
5. Li-Ion Battery, rechargeable, up to 5 hr mp3 playback time
6. The LED Indication is hide
7. Normal pen, rechangeable refill