In the past few months we've reviewed several tiny Bluetooth speakers, some better than others. What's interesting about Outdoor Tech's Buckshot Pro, which retails for $80 and comes in multiple color options, is how versatile it is. In addition to being a pocket-size water-resistant (IPX5) wireless speaker, the Buckshot Pro can also be used as a USB charger for your phone and a flashlight (it comes equipped with a detachable LED light). Alas, it's currently not available outside the US.
The speaker/light combo functions as a flashlight or you can strap it onto your bike's handlebars and use it as a bike light. I wouldn't say the light is all that strong (don't expect it to completely illuminate the road in front of you), but there's a strobe mode that at least allows this to work as a safety light while riding.
Previously, Outdoor Tech made a smaller version of this speaker, the Buckshot. While the two speaker share the same cylindrical design that's reminiscent of shotgun shell, this speaker is a bit bigger than that model, weighing 6.7 ounces or 190 grams and now includes a passive bass port for "bigger sound." Also, battery life has improved to 10 hours, which is good when you consider a lot of these micro speakers deliver 5-7 hours of battery life.