I took a 22 mile ride with my new speaker today. It worked great. It's just what I need. I can hear the audio and the road sounds I need to hear. I was in very light traffic, and I heard vehicles approaching from ahead and behind. I didn't test it on fast downhills. Typically a speaker is not loud enough on those, so I pause the audio for them. And normally, I listen to spoken word on the bike, not music.

Monster Boomerang Neckband Bluetooth Speaker