I have an HTC One S on T Mobile with Android version 4.1.1 and recently bought the LG Tone Pro HBS-750 bluetooth headset. Both the phone and headset are listed to support AptX audio for bluetooth which to my understanding limits the delay in transmitting audio to the headset. However, when I watch a video on my phone from what seems to be any app, there is a noticeable delay. I have been searching around for why the aptx isn't doing what it is designed to do but I cannot find anyone who has figured it out. Perhaps my phone or headset is defective? Does anyone know if this should work or not? Thanks.