If you’re looking for a compact Bluetooth speaker that’s as tough as it is portable, the JBL Go 3 ... At just 2.7 by 3.4 by 1.6 inches and weighing 7.4 ounces, the Go 3 is small enough ...

A lot of your devices may come with a built-in speaker, but probably not a very good one. So, if you care about music or podcasts even a little, then you'll need to invest in a Bluetooth speaker.