1)Music Format:MP3 or WMA 2)Display:7 Color Backlight LCD SupportID3 Text Display Multi Language 3)Equalizer Mode:7 different modes 4)Storage Capacity:128MB to 1GB 5)Voice Recording:360min/128MB 6)Support OS:Windows98/ME/2000/XP 7)FM Function:Optional 8)Battery:1*AAA 9)Unit Dimension:82*28*20mm 10)Weight:28g