The Sonos Ace headphones are already available for purchase and they have got some serious competition. One of them is the 2-year old Sony WH-1000XM5, a top choice in the premium headphones category. Here are some differences to note if you are considering buying either pair of headphones.https://www.notebookcheck.net/5-key-differences-between-the-Sonos-Ace-and-the-Sony-WH-1000XM5.846150.0.html
The USB-C Audio, while is the difference, the explanation still seems weird unless you are stating that Sonos includes the C-to-C Audio Cable as well as the 3.5mm to 3.5mm and the cross. B'Cos you'd still be looking for a C-to-C Audio Cable or C-3.5mm Cable if your Device doesn't have the 3.5mm port.