Sonos this week introduced a last-minute holiday sale, offering up to 25 percent off the company's most popular devices. This includes the Sonos Ace headphones, Arc Ultra soundbar, Move 2 speaker, and more, with many prices matching the deals we saw over Black Friday. Note: MacRumors is an affiliate partner with Sonos. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running.