I have the PX 210 BT absolutely satisfied now for 10 days and am. I connected it with my iPhone4, my iPad (32 GiB, 3G), my MacBook Pro and my HTC Legend (Android 2.2). On all equipment of sound and reception is totally great. The asynchrony described in videos or movies does not occur. No cracking or dropouts, unless I move further 2 rooms, it will get worse. No noise or strange noises. Although I as Apple fan must say that my sound on HTC Legend personally like best.