Even though the SoundTouch 10, 20 and 30 all offer Wi-Fi, Bluetooth and Apple AirPlay 2 compatibility and effortless one-touch presets to access your favourite music-streaming services, they each provide different levels of performance to suit different-sized rooms in your home. The SoundTouch 10 is our smallest SoundTouch speaker that delivers full, rich sound and Bose performance that seem to defy its size. The SoundTouch 20—Series III is a compact, wireless speaker that delivers clear, room-filling sound. The SoundTouch 30—Series III is our best-performing, one-piece wireless speaker with Bose waveguide speaker technology that produces deep, rich sound to fill your largest room. Another difference is that both the SoundTouch 20 and 30 display in-depth song, artist, station and connectivity information on an OLED screen, whereas the SoundTouch 10 displays simple connectivity information via four LEDs on the front of the product.