"Lover's MP3/WMA player without display,Necklace case , touch button! (a pair/2pcs) 1. Support the format of MP3/WMA&U-DISK 2. Windows compatible file system as removable drives (FAT 16/32) 3. Windows98/ME/2000/XP/Vista(NO driver procedures are needed above windows 98) 4. No display 5. Rechargeable battery 6. USB 2.0 Full Speed interface 7. MLC type NAND flash available 8. Necklace case, touch button."