+1 on the video lag, it’s driving me nuts and I don’t know what’s causing it. I’m thinking it’s because all of the headphones I’ve tried have older Bluetooth 4.1 version. Currently using the Jabra Elite Sport and love them except for this darn sound lag when watching video. I wish the AirPods would fit my ears ugh!
One of the reasons I chose the AirPods were to avoid audio/video lag, since I watch a ton of TV shows on the iPhone.
I suspect Bose Bluetooth earphones will have no audio/video lag either. When I wanted a Bluetooth speaker a year or two ago, I wanted one with no lag so I can use it for video with the iPad in the kitchen. Many brands had lag. Bose didn’t, so I got their Soundlink Mini II.
I wouldn’t be surprised if their Bluetooth headphones had no lag either. Bose has focus on quality.