There's really only one way to make your music loud when you're out and about, whether you want to play some tunes at a picnic or start an impromptu rave at the park, a Bluetooth speaker is your best bet. There are some great options out there as well, which will make your music sound great no matter where you are. I've tested all the speakers on the list so I can personally vouch for their quality — and thanks to Prime Day, they are all a whole lot more affordable.
