https://www.amazon.com/gp/product/B01LWOEKWM/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

I've had these for a few months now. They fit well in my ears and stay in well. Sadly I've gotten very attached to the magnet part to hang around my neck. I didn't care at first, but now I couldn't live without it.

As far as battery life...in my experience it seems like you're probably not going to do much better than 4-5 hours. I typically make a point to plug mine in after every workout. I have a USB line in my car so its easy enough.