ModelSL02FlashMP3PlayerFeatures:USBFlashdiskfunctions,WindowsME/2000/XPnoneedtoinstalldriverSlotsupportsMMC/SDUSB2.0Interface,supportplugandplayLongTimehighqualitydigitalrecordingPoweredbyAAAbattery TechnicalSpecifications:-Dimension:60x56x15mm(LxWxH)-Weight:28g(withoutbattery)-OS:Windows98(driverneeded),Windows2000,WindowsME,WindowsXP-PCInterface:USB2.0-FileFormat:MP3-Bitrate:32Kbps~320Kbps-NoiseRatio:90db-Earphoneoutput:11mW+11mW@16Ohm-Rangeofoutputfrequency:20Hz-20KHz-Recquality:NormalorFine-Power:AAAbattery