I have a pair of black Heyplus Runner Bone conduction Headphones. I use it when I ride my bike to work, and I can still hear the cars around me, so it’s safer for me to ride with the Heyplus Runner headphone.
I also like to use this when I am running. It will not fall off my ears when I am running, and it is also very light. And the Headphone with 16g memory which supports me listen to songs even without a mobile phone.