The revamped Sonos Move 2 portable speaker sports stereo sound, up to 24 hours of battery life — twice that of its predecessor — and a slew of design changes since the water-resistant speaker’s initial release four years ago, the company said Wednesday.

Sonos Move 2 becomes available September 20 for $449.

The Soundcore Motion Boom Plus is a powerful, portable outdoor speaker you might want to nab before summer’s over. The boombox-style Bluetooth speaker brings the brawn — 80 watts of power — along with a bit more heft than some competitors.

When you factor in the excellent sound quality, some sporty features and the relatively low price of $179.99, it’s a worthy choice for outdoor use. Some folks might even use it indoors, but many never would because of its black plastic design. It might look at home in a college dorm, but probably not in most living rooms.