? Capacity: 128M , 256M , 512M , 1G ? USB 2.0 compliant ? Format supported: MP3 ,WMA, WAV, ASF ? No driver required under Win me/2000/XP , hot plug and play ? The MP3 player is also a USB flash drive that can store any file types ? Built-in microphone, high quality digital voice recording, can record over 9 hours constantly ?Digital A-B replay function ? FM radio function ? Note book function ? 13 language support: Chinese GB, Chinese Big5, English, Japanese, Korea , French, Italian, German , Spanish, Swedish, Portugal , Denmark , Dutch. ? 7 preset EQ: Natural, rock, pop, classic, soft, jazz, DBB ?Alloy shell, 7 colors back light, 128x32 pixel that can display ID3 tags: Song Title, Artist and Time Duration ? Use one AAA alkaline battery, can play music over 10 hours. ? Signal/noise: 85dB~90dB ? Size: 54x20x 23mm ? Weight: 30g ? FCC, CE approved