Sonos Ace Ultra Filing Reveals Wi-Fi Connectivity, Suggesting Direct Speaker Integration

An FCC filing for Sonos model S52A, labeled "Sonos Ace Ultra" on an ear-cup diagram, shows 2.4 GHz and 5 GHz Wi-Fi radio testing. The original Ace relied on Bluetooth and a phone intermediary; native Wi-Fi would let the headphones join Sonos's whole-home audio mesh directly. Sonos is expected to announce the device at a September 2026 event.