support: WMV, ASF, MP3, WMA
non LCD screen and Sound recording
working time:6hours
charging time:3hours
USB interface: Download, upload and charge
Does not support video and Expansion card
Automatic Shutdown:30 seconds after the mp3 player stoped
Capacity:128M、256M、512M、1G,2G
color:black,red,blue ,silver
Suitable for fishing / driving / sailing / hunting / skiing / sports