FUNCTION: MP3 PLAYER VOICE RECORDER REPEAT FUNCTION PEN FUNCTION FM FUNCTION TECHNIQUE PARAMETERS: ?128MB Built in FLASH memory (optional 256MB/512MB/1GB) ?High Quality MP3 and WMA ,ASF music Format Playback ?Included USB Cable Connector easily Docks to any USB jack 昗ithout LCD Display ?High quality Digital Voice Recording Function ?A-B Repeat playback ?USB Bus Battery recharge ?Built-in 3.7V re-chargeable Li-Ion Battery 昒p to 8 hr MP3 playback time ?Upgradeable firmware included Windows 98 Driver ?Metal casing ?USB2.0 Full speed