1) Controller: Action 2) Screen: Seven-color backlight LCD (Lattice:132*32) 3) Capacity: Built-in flash memory 128M/256M/512M/1GB/2GB 4) FM (Optional): Built-in FM tuner with 20 channel presets Additional US$1.3 for FM function 5) Battery: 1*AAA alkaline battery for 8-hour playing 6) USB plug 7) Housing: Plastic 8) Dimensions (L*W*H): 90*31*22(mm) 9) Weight: 33g ( Without battery ) 10) Display: 10.1) 16 kinds of languages 10.2) Synchronous lyrics 11) Record & Play: 11.1) A-B repeat 11.2) Voice recording 11.3) USB drive (USB2.0) 11.4) 7 kinds of equalizer modes 12) Audio File Format: MP3/WMA/WMV/ASF/WAV