A similar thread currently exists, as of this writing, but seems to be geared toward using headphones and variants of. I would like to make this thread to dedicate to the use of bike mounted speakers, and especially not to earphones, earbuds or other such in ear, or over ear listening devices.
I recognize that listening to music may be distracting for some, and on some level for all riders. That said, I liken the use of speakers to the use of car radios and such: when kept at reasonable and prudent volumes, the user may gain a substantial benefit of entertainment, information, and perhaps even motivation. Be aware though, that just like in a car with the radio at too high a volume, so too may you be risking your safety if your bike speaker is too loud. Don't get complacent in regards to safety. Don't listen to music too loud while riding.
I have purchased three of these from eBay (white 1gb capacity actually) and they are by far a better sound system. I really like listening to fm radio, and these sound wonderful. They don't hold a charge as well as that speaker bag, but do have 2 led lights. The lights aren't very effective, and are just an added bonus, not sufficient for night riding. I am not the best at computer technology, as such I have only been able to put one track succesfully on my sound system. It sounds even better from mp3 but is a little far from user friendly. The mount stays on the bicycle but by the use of a provided allen key. Installing or removing from the mount is snap, and it contains the sound system reasonably well.
I really enjoy the ride a lot more with some tunes to listen to, and often find myself spinning hard in order to maximize distance during particular songs. "I wonder where I will be when this track is done?" or "I'm going to try to get to my destination within six songs" are often going through my head when using either device.
So who else uses bike speakers? How do you like them? Anyone have advice on loading music onto my Tommyca?
Be aware I am in no way affiliated with either manufacturer or distributer of these products. I am just a user that enjoys listening. Furthermore, I am significantly more hindered aurally by wind than by music. I keep the volume at such a level that with a strong headwind, or high speed I can't hear the music nearly as well. I hear traffic fine, but with wind rushing over my ears I do have some problem hearing cars behind me. I don't ride in heavily congested areas, and almost never have other bicycle traffic to contend with. I don't feel any significant risk is involved in using either device, prudently.