Wireless speakers from JBL, Hisense and Ikarao. For weather-sealed models built for outdoors, see Portable Speakers.
Bluetooth version affects range and stability more than sound quality. 5.0 and above is what you want for a reliable connection across a room with walls.
Check for multipoint if you switch between a phone and a laptop — without it, every switch means disconnecting and re-pairing.
For a room rather than a desk, look at whether two units can be paired into a stereo pair. Two smaller speakers placed properly beat one larger speaker for music, and it lets you start with one.
If it will spend time outdoors or by water, buy a rated model rather than hoping.
