We tested the Sonos Move 2 portable speaker. It requires being part of the Sonos music system, but if you've bought in, this could be the best portable speaker.
Sonos Move 2: This Is Sonos's New Top Tier Portable Speaker
Sonos Move review: Hefty portable speaker brings big Sonos sound to the outdoors - CNET
Sonos Move 2 (White) Wireless portable speaker with built-in Alexa, Apple AirPlay® 2, and Bluetooth® at Crutchfield
Sonos Move 2 Review: Two Key Improvements Make for a Better Speaker - CNET
Sonos Move 2 review: a slam-dunk sequel - The Verge
Sonos Move 2 Portable Speaker Promises Better Sound and Battery Life - CNET
Sonos Move 2 review: moving portable sound up a gear
Sonos Move 2 First Look: Launching 20th September for £449
Sonos Move 2 review: big portable sound for a big price
Sonos' new Move 2 redefines the premium portable speaker
Sonos Move 2 Review
Sonos Move 2 review: The best rugged smart speaker gets better
Sonos's Portable Speakers Compared: Move 2 vs Move vs Roam vs Roam SL
Sonos Move 2 Review: Fantastic sound and a price to match