Features: 1) Color OLED graphic display screen 2) Supports MP3 / WMA / ADPCM formats 3) Play movie (format need be translated) 4) Supports FM / REC / A-B 5) Built-in rechargeable lithium battery 6) Supports synchronized lyric display 7) Book reading / picture browsing 8) 5 sorts of EQ 9) Lock button 10) Multi-language support, including Simplified Chinese / Traditional Chinese / English / Japanese / Korea / Russia / Thai 11) Online firmware update Specifications: 1) Storage capacity: built-in 256M - 1GB (optional) 2) Interface: high speed USB 3) Download speed: 500kb/s 4) Screen: 65K color OLED screen, 96 x 64 dots 5) Battery: built-in 280mAh rechargeable lithium battery 6) Charge time: 3 - 4 hours 7) Play time: 6 - 8 hours for mp3, 4 hours for movie 8) Signal-to-noise radio: 90dB 9) Output power of earphone: 5mW + 5mW 10) Range of output frequency: 20Hz - 20kHz 11) Compress rate: (MP3) 8 - 320Kbps; (WMA) 5 - 192Kbps 12) Record sample frequency: 8 - 32kHz 13) Dimensions (L x W x H): 64 x 41 x 8.7mm Character: 1) Uses Sigmatel decode solution 2) Tiny, ultra-light, aluminum alloy case, metal oxidation for twice 3) Conveniently customize user logo due to pure metal case Order guide: 1) Case colors: red / silver / black 2) Packing: cardboard box 3) Minimum quantity of an order: 100pcs 4) Inquiry: need to fill in standard price inquiry form for MP3 player En-Tron