Choose Aux from the panel and connect your phfor or mp3. You can enjoy the music from the phfor or mp3 pad and more. (They phfor should have function.). 4.0 version, and compatible with 2.0 3.0 4.0 other versions, can support the commonly used MP3 format audio, but also support the WMA WAV FLAC, and other high-quality audio format decoding, non-ordinary functions, can support DSD large capacity transmission.
eBay