Sonos has released a major software update for its Ace wireless headphones bringing performance improvements and a feature that was supposed to originally be available late last year. The new software update is also expanding the headphones’ TV Audio Swap feature which lets you send the audio from a supported Sonos soundbar to the Ace for private listening. Last August, Sonos expanded the TV Audio Swap’s compatibility to include its more affordable Beam and Ray soundbars, and Android devices. Sonos’ update further expands TV Audio Swap’s capabilities so that it now works with two sets of Ace headphones simultaneously, allowing two people to watch TV together without disturbing others. Sonos says the Ace will also benefit from enhanced active noise cancellation that adapts to how the headphones fit on your head.