Actually considering that they are just BT 4.2 for me MW07 have less dropouts than 65t which are BT5. I have no problems with them staying put at a gym no matter what I do there, though they are not good for a treadmill because of thumping. You’ll need to find proper for your ears combination of fins and tips. For me it turned out to be SpinFit CP100Z-L tips with large fins. None of the stock tips worked well in my case. MW07 are light, don’t stick much out, stay put in ears, easy to operate and have a really invigorating sound signature.