Not for a fast cyclist
If you can pace 18mph or better, its sound disappears...
Great design, wanted to like it, but can't hear it over road and wind. Did not matter bluetooth or hard wired.
By ken, on 7/31/2013
It does the job
I've rided with the boomBOTTLE during a cycle trip with friends which lasted for 15 days. the boomBOTTLE was on several hours each days, the quality and loudness of sound is quite impressive and it deserves a special reward for its long battery life.
By Simon, on 7/10/2013