I be really excite about this product and though I try and try and try I never get this thing to work . this be the problem with Amazon , no one to call to get help . this product have no customer support , no website to find trick . basically what happen be I plug it in and it `` charge '' it start to pair but fail everytime and it also seem to fail to get a charge . so I try it with several other people iphone but the 3 and 3 and now I have the 4 all failure . DO NOT BUY THIS PRODUCT !