1. Direct USB Type Bar MP3 Player; 2. Built-in rechargeable lithium polymer battery; 3. ... Backlight LCD screen; 4. CE, FCC. Direct USB Type Bar MP3 Player (EM646) Features:1. Capacity: 256M,512MB, 1GB, 2GB,4GB ... ,8GB(Optional);2. Audio format: MP3,WMA,ASF;3. EQ Mode: Normal, Rock, Pop, Classical, Soft ... Best Price Will Provide to You! Direct USB Type Bar MP3 Player (EM646)