Sony's LinkBuds Open features one of the most unique designs, with a donut-shaped driver that leaves the ear canal open but solves the too-distant sound of some open-ear earbuds. The body of the ...

Sonos calls its process Tru-Play, while Sony, which doesn’t name the calibration process itself, uses what it calls 360 Spatial Sound Mapping technology. The objective in both cases: Once you ...