always with phone, i´ve never tried to use the radio in the cellphone though. it works perfect with iphones but the next and prev song doesn´t work with any other brand. I´ve tried with samsung, nokia, Bberry, xperia and it only pauses the song, it doesn´t move to the next/prev song. sound is great!!
no radio, and for the price this unit is terrible on the volume and sound, i sent two back, no bass at all, these are small very small computer speakers and sound like them, waterproff u have to make the speakers out of hard core mat. so the sound sucks so bad, i got bluetooth speaker and it cost less , sounds like a speaker and has bass and u can charge it lasts for 7 hours full blast, so dont get this unit, u wont like the very bad sound and volume. ryan