System Requirements Hardware IBM PC or compatible PC, Notebook or Macintosh with USB port Operation System Windows ME/98/2000/XP/Vista and Linux2.4/Mac OS9.0 above Function characteristics USB Interface USB2.0 high speed Capacity 128MB ,256M,512M,1GB,2GB,4GB,8G(Optional) Storage Device Removable Storage Device EQ Mode N/A Play Mode Repeat all VBR Available Technical Specification Read speed SLC：5.5 ~ 6.0 MB/S MLC：3.5~4.5MB/S Write speed SLC：3.5 ~ 4.0MB/S MLC：2.0~3.0MB/S Audio format MP3,WMA Bit Rate MP3:8Kbps—320Kbps ,WMA:8-384 Kbps Battery Life About 5~7Hours LCD Display N/A SNR >85dB Frequency Response Range 20HZ—20KHZ Physical characteristics Battery Type Rechargeable lithium-ion polymer battery Storage Temp* -20℃ ~ +55℃ Ambient Temp* -10℃ ~ +55℃ Operation Relative Humidity* 20% ~ 90%（40℃） Storage Relative Humidity* 20% ～ 93%（40℃） Size（mm） L*W*H : 44x29.5x13.2(mm) Weight（g） About 18.2g Color red Package Blister package EMI Compliance CE