1) Product size: 89mm x 40mm x 7mm 2) Color: black/white 3) Screen: 160 x 128 1.8" 260K colors TFT 4) Memory capacity: 256MB-2GB 5) Music format: MP1 / MP2 / MP3 / WMA / OGG / ASF / WAV 6) Movie format: AMV 160 x 128 pixels 7) Interface: full speed USB1.1 8) SNR: 90dB 9) Output frequency range: 20Hz - 20kHz 10) Recording sampling frequency: 8kHz 11) Read speed: about 1,000Kbps 12) Write speed: about 800Kbps 13) Operating system: no driver is needed above Window 98