OWS Sports

There are 'open' headphones that are not bone conduction and have better sound quality, but still allow you to hear. I've been using Oladance OWS sports and they've been good. There are competing models from other brands as well, haven't looked into more recent ones. Obviously once you get going super fast or in the wind they're harder to hear, but most of the time they're great. Definitely better than blasting everyone with a Bluetooth speaker.

Shokz sound quality imo are terrible compared to the competition these days. Open ear are far better sound quality and was running with them for over a year till they broke, even then didn't go back to my shokz, now picked up ear clip designs and loving them specifically the baseus Bowie MC1s as they were cheap and these style are such an odd design, I had no idea how I would get on with them, Bose versions are meant to be the best but they're also 5 times the price. They might look odd but they are fantastic, and leave the top of the ear totally free for glasses. I'm surprised how much and how comfy and how good the sound is. I'm sure some people have tried something other than bone conducting and gone back to shokz, but it seems most have never tried anything else, just tried shokz as it's so highly recommended and stuck there and say they are great having zero comparisons. It's not to say shokz are bad, I just don't think they live upto the competition these days, as there are multiple design options now which are open ear and not bone conducting. Edit - so the 3 I have extensively ran in are Shokz openrun pro - don't get me wrong, they aren't bad, but by far the worst sound quality and loudness, also least comfy by far. 10hr battery life, so not great on that front either, considering size and comfort, sound quality and loudness. Oladance OWS Sport - in the middle for sound quality, equal to the mc1s in loudness, but massive battery life. 15hrs. However they broke, after about an hour they go really quite and have to be turned off for 5-10mins before they work again (my guess amp overheating) very disappointed in customer service which is why I didn't just get another pair, and looked at alternatives. Did manage to get a 60% refund out off them in the end. They also shockingly don't sell proprietary charging cable for it , in all regions they sell the headphones. Baseus Bowie MC1 - by far the most comfy and best sound quality and equal top loudness. Worst battery life (not an issue for marathons but for ultras) but quick charge in their small easy in pocket case. 9hrs single charge, 40hrs with case, 10min in case = 3hrs.(So with case they kind of win on battery, as no wall mount or battery pack required, with cables) So between 9hrs single charge and the 10min fast charge on my ultra I'm hopping to do in around 16hrs, pop them in the case while I resupply at aid stations and should be more than adequate. I am so happy I gave them a try, really thought they would both fall off or/and be uncomfy. They are neither. They don't budge. Would just recommend whatever you get try and get something with easy no question return policy like Amazon, in case you don't like what you get, or they don't fit your head/ears.

Oladane OWS and can recommend.