Marshall's in the middle of quite a big summer from what is objectively one of the more boutique-sized audio brands out there. It's already released the Milton ANC, a really interesting new thrust in the world of headphones, and now it's also refreshing one of its most popular speakers.
The Stockwell III is a welcome upgrade on its predecessor in a few key ways, but it looks very similar, which is no bad thing. Like the Stockwell II, it's a sort of portrait-orientation Bluetooth-only speaker, standing on a relatively narrow base with a carrying handle for convenience.