... .Build-in FM radio (optional); 4.Support MP3, WMA music format Digital Mp3 Music Player JX-680 1)256MB, 512MB, 1GB, 2GB ... )Build-in FM radio (optional) 5)Recording6)Support MP3, WMA music format 7)7 EQ modes: NORMAL, ROCK, POP, CLASSIC, SOFT ... -B repetitive reading (1 AAA battery) 12)Unit size: 95 x 30 x 21 mm 13)Available colors: black, blue, red