... mp3 4.For all 2.0 speaker audio 5.Oem odm USB SD FM IR AUX mp3 speaker module The module ... USB and SD card absolute Power Amplifier,and stereo FM radio (87.5—108MHZ)onto multimedia Products and much more convenient ... , PLAY/PAUSE,Play/pause function, Auto search function in FM mode. 5, VOL-,Turn down volume 6, VOL+,Turn up volume ... 7, EQ, Invalid in FM mode.8, 0,1,2,3,4,5,6,7,8,9,100+,(reduce ...