... Card, USB, FM RadioFeature & function: Single Spectrum with balance display, support USB/SD, MP3, FM radio, remote control, with left & ... right LED display. This product can be used in audio, mini stereo, amplifier ... :last/next song,volume,play/pause,modeProduct No.502Q-AFeatures Shape Oblong Shell ABS Color Sliver & black Control Provided LED, Digital ...