Key Specifications/Special Features: Super slim style 1.8-inch TFT display screen, bigger and clearer for pictures appearing Supports MP1, MP2, MP3, WMA, WMV, ASF, WAV and AMV formats Supports FM radio, preset 20 + 20 channel 76, 90, 87 to 108MHz TXT text reading (E-book) Electronic album, download the favourite pictures to browse Screen-protection, appear the favourite pictures in circle when waiting and playing Digital voice-recording, save as WAV, ACT format Equalizer: Normal, Rock, POP, Classic, Soft, Jazz and DBB Standard U-Disk, Supports USB Mass Storage, no driver above Windows 2000 ID3 lyrics display and English synchronized display Firmware upgrade support (choice) Play mode: Normal, Repeat-one, Folder, Repeat folder, Repeat All, Random and Intro Housing colors: silver, black, orange, blue and red Memory Capacity: 128MB, 512MB, 1GB ,2GB4GB (Samsung flash chip) Battery : Type of battery: built-in rechargeable Lithium battery LCD: 1.8'' 128 x 128 pixel Size: 65 x 43 x 12 mm Weight : 35g (body) S/N ratio: >=85 Db Output power of earphone: 10mW (32 Ohm) Frequency: 20Hz 20KHz Recording sampling frequency: 8KHz FM Radio(Built-in): Receiving frequency rate 87MHz-108MHz, 20 Stations saved Multilanguage support: simple Chinese, traditional Chinese, English, Japanese, Danish, Thai, Russian, Hungarian and Polish Support track compression rate: 8kps 320 kps Game function (new) Size (W x H x D): 91 x 41 x 8.3mm System Support: Windows 98/98 SE/ME/2K/XP, Mac OS 10, Linux 2.4.2