I use a set with my iPhone and they work fine. Audio quality for the headphones themselves is pretty good, but suffers a bit using an iPhone/iPad since they don't support aptX. Be aware that because of the delay when using Bluetooth headphones (any Bluetooth headphones) they really aren't great for video. The picture and the audio never seem to quite sync up. The LG Tone+ aren't any particular worse than any other set of Bluetooth headphones I've tried, but it's pretty much an across the board issue.