Way back in 2017, I purchased a pair of the OG Aeropex headphones before they rebranded their company and brand lines. I think today's equivalent would be the Shokz Open Run.Anyway, I absolutely loved those headphones; they were my daily driver for everything from chores and yard work to biking and even driving as my vehicles does not have BT. The battery was still lasting more than 5 hours per charge, the sound hadnt changed... just wonderful. Then why did I 1) decide to try the open air and 2) why did i need new headphones?Turns out, as good as the Aeropex are, they're no match for a 6 month old puppy (see images). RIP Aeropex.I've had these OpenFit Air's for about 12 hours now. I've used them in three different common for me situations: driving, a work call, and working in the yard.Sound quality- Better than the Aeropex. The sound quality is higher, but you dont give up any of the awareness that i loved so much with the bone induction tech.- Volume was a little mixed. One of the podcasts I was listening too was a little too low, but music/calls were fine. I think it was more their mixing than the headphones- As they are not intended to be the highest fidelity / best sound reproduction buds, I dont review them as such. They wont win anything there. That said, they're more than fine for you if you're going in with the understanding that these are for being active, for hearing the world around you AND what is playing in your ear. IF you have those expectations, they're great.Fit / Comfort- For my ear, they fit perfectly. Not loose, not snug - they dont feel like they're going to fall out at all.- They're much lighter weight and easier on my ear. I've already forgotten they're on twice. If these had a battery that lasted 12 hours, I could easily have them on my ear all day and not feel a difference. That should tell you something. For comparison, I thought the Aeropex were decent and I could wear them for 2-3 hours without fatigueControls- I'll admit, I havent yet RTFM, so this is me attempting to intuitively figure it out.- Pairing was super easy, didnt even need to long press/wacky tap or anything to enter pairing mode, it just did it out of the box.- They turn on and connect automatically, like my airpods do, nice. (I sometimes had to twiddle the Aeropex)- I have yet to figure out how to turn the volume up/down- Double tapping on the left bud seems to play/pause whatever you're listening to- There's something you can do with a long press, it makes the bud beep, but it's not intuitive- After I RTFM I'll likely understand more, but they're not the most intuitive (both the Aeorpex and Apple Air Pods are better in this reguard)Overall... I love them. I truly hope they last as long or longer than my last pair of Shokz headphones. Will update if things change!