Mini Speaker SD cards, U-disk,AUX 3 modes -1.Support SD card, U- ... -2.LINE OUT function, direct drive earphone Mini Speaker SD cards, U-disk,AUX 3 modes Features: 1. Support SD card ... as RPT 1/RPT ALL, LCD displaying ALL for repeat all playing, 1 for repeat one playing (valid under MP3 mode) Mode introctionSwitch on ... raise the volume, volume level 0-30 Mini Speaker SD cards, U-disk,AUX 3 modes