#simforgotten.
You are right in saying any 3.5 Jack IEM wont work with any 3.5 jack phone , my NUFORCE NE-7M used to work with S2 but did not work with Galaxy 3 but that was due to the presence of mic , sadly i did not hve a S/S2 when i had a M1 w ith me , however i have tested it with Galaxy 3 and it did work . Going by my 5-6 IEM tested on mobiles i can make a safe conclusion that most of the IEM's that do not have Mic will work with most of the phones , plus M1 have a lot of demand if u reduce pricing by 200-300 bucks and sell it soon you wil get a buyer (ofcourse 200-300 is not a small amount but still there is nothing else you can do about it) , i had sold off my M1 for 1100 + shipping and had bougt at 1490(during time of offer of PN) and it got sold in 1 day.