1) Supports MP1, MP2, MP3, WMA music fomat 2) Supports lyric display with music, A-B replay function, voice-recording / replay 3) The sound can be recorded with microphone and saved as WAV and ACT file 4) Segment-replay or compare-replay can be choosen 5) It has real numeral repeating function 6) 13 languages display: English, French, German, Italian, Dutch, Portuguese, Spanish, Polish, simple Chinese, Korean, Trad chinese, Russian, Japanese, Swidish, Denmark, Czech. 7) Built-in FM dimensional-sound radio. You may easily listen to FM stations by using auto search or manual search, it's a optional function, if you want this function, there will be a additional cost. 8) Variable models, common models, loop models 9) The flash memory can be divided into two parts by using the accessory tools and one is encrypted to hide the contents saved inaccessible by others 10) Built-in auto-backlight display, also can accommodate manually. The backlight is soft and comfortable. You can use easily in any back-colors 11) Closed timely. You may set Sleep Time or Off Time mode at your own convenience 12) Firmware upgraded. Provides the latest updated features via firmware upgrade from the website 13) Intuitionistic act menu. Workw in the show of relevant writing. Using facility 14) Low-consumed power. The battery may be used for a long time 15) Hi-speed USB 2. 0 16) LCM Dot-Matrix display 17) 7 EQ modes: normal, rock, pop, classic, soft, jazz, bass 18) Capacity choice: 128MB / 256MB / 512MB / 1G / 2G