1) Supports MP3 / WMA formats 2) High quality digital voice recording function 3) A-B repeat playback (FM radio or A-B repeat is optional) 4) Built-in re-chargeable Li-ion battery 5) Up to 8h MP3 playback time 6) Included USB cable connector easily docks to any USB jack 7) USB 2.0 interface 8) Capacity: 64MB / 128MB / 256MB / 512MB (1GB / 2GB) 9) Storage media: NAND flash memory 10) Metal case 11) Dimensions: 150 x 20 x 18mm 12) Weight: 50g 13) Accessories: a) USB cable b) Instruction manual c) Stereo earphones d) Software disc