I find it interesting the couple of replies regarding earphones / headphones. Mine is about speakers.

In the outdoor gazebo here at a family member's house (where I've been house-sitting for a number of days), and I find this Sonos Move bluetooth speaker to be just amazing. It was up on the deck all day blasting out tunes while I was in the yard, but a number of hours ago I took this thing down with me into this gazebo (so as to not have to be loud enough the neighbors would have to hear it), and I've been here ever since, on my laptop, working. Playing some nice jazzy type chill music -- truly quality sound coming from this device -- giving me the needed auditory equivalent of junk food, ... i.e., it's absolute bliss.

I've no idea how long before the batteries go before needing recharging, but it's been far beyond my expectations already.