Functional, lightweight product that is secure and makes runners safe!This is a nice and pleasant surprise where there is nothing fancy, it just works! At a fraction of the costs of the big brands.I enjoy running in these as they are lightweight and do not wiggle as I move. It provides the safety that I was looking for and it does not block outside noise completely. It feels great when your beanie is no longer pressing the non-open-ear earpods against your ears which I dislike the most in winter. These feel great.I was able to hear the bells from bikers behind me without getting surprised. Most importantly if you're running on the streets, you'd hate to find out there's a car sneaking up behind you and giving you a heart attack.Battery life is great, it never ran out of battery for me. Less than 8% usage for my 90-minute run with Spotify and I can see this lasts as long as a marathon run and more.The quality of music is at my expectations because of the open-ear-ness and I wanted to hear more from outside the music. That works awesome.Finally, they are very easy to wipe clean, no more ear wax from my ears.