First of all, I have not trie the QC35 II with the audio cable. So, I do not really know how well the noise cancellation works on the audio cable. Yes, the bose app is mostly accessible. You, to some degree, have some trial and error when it comes to finding each setting, but once the location of each setting, you will find that they do not move. Yes, Bluetooth speakers and headphones have a delay. YOu do not really notice the delay when listening to music, but you will notice it when navigating around on your phone and the like. As for the batteries, the batteries are not replaceable. I am sorry about that. On the other hand, it takes the stander bacro USB cable for charging. I do use a different pair of headphones on my PC seeing that my PC does not have Bluetooth. I figure that sense that do not need noise cancellation and that I do need the audio cable to listen to music on my PC, I use the wired headphones that I linked to in my first posts seeing that I do like the sound just a tad better. This is not to say that the noise cancellation on the bose is bad, but I just like a slightly different sound when noise cancellation does not inter the picture. I can also tell you that there is a big difference between cheep noise cancellation and good noise cancellation. I can also tell you that the noise cancellation stomps on the audio a bit, but that really can not be help seeing that it is what it is and it is not that bad either. Anyway, I tried these on the road and can say that they do block out most of the road noise. Yes, it can be a little off putting when you fill the road through the seat of the car while not receiving much of a hent through the sounds you are hearing that you are on the road. It is almost like the sound of a bedroom in your ears with the far distense of road noise while the the fill of the wheels on pavement of the road comes through the seat that you are sitting on. As a side note, I have no problem with the location of audio in the stario field when the audio source is through Bluetooth. Hope this helps.
All that is gold does not glitter, Not all those who wander are lost; The old that is strong does not wither, Deep roots are not reached by the frost. From the ashes a fire shall be woken, A light from the shadows shall spring; Renewed shall be blade that was broken, The crownless again shall be king.
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