High-Speed USB2.0 Flash Memory: Storage Capacity 1GB-8GB maximum playback time: 8 hours Headphone Maximum Output: "5mW (320hm) MP3 bit rate: 8K bps-320K bps WMA.WAV Bit Rate: 64K bps-384K bps letter noise ratio: "85db music format: MP1.MP2.MP3.WMA.WAV Use temperature: -5 to 40 degrees Celsius are supported operating systems: Windows98/ME/2000/XP.Mac 0s 10.Linux2.4.2
