Main features: automatic lyrics display (LDB lyrics database) in Korean/Chinese; supports extended storage, navigation, folder and playlist data; FM radio; MP3 encoding and auto sync; optimal setting for SRS WOW; compatible with Ogg vorbis file format; USB 2.0 (higher than 20Mbps); Size (W x H x D): 22 × 54.5 × 22.5mm / 30g; up to 20 hours playback time using a single battery (1 AAA battery); 128/256/512MB/1GB of storage available; white color LCD.