... device you insert2, With AUX IN, it can compatible with MP3, MP4, CD player and PC, etc.3, With FM radio function, frequency ... range: FM: 76 -108MHZ4, Excellent tone quality, with wallyson dual channel stereo.5 ... and PC, etc.3, With FM radio function, frequency range: FM: 76 -108MHZ4, Excellent tone quality, with wallyson dual channel stereo.5 ...