INGENIOUS DESIGN - This unique patented adjustable design is simple, yet cleverly thought out. It gives you the ability to adjust the space between the wall and the speakers from 10mm to 50mm to allow you that extra space you need behind the speaker. Got bigger wires? Already got the trunking on the wall? Have an uneven wall? Want to position the speaker further forward? Not a problem! Weve got you covered! FULL ATMOS - Our unique patented design means you can fully adjust the speakers distance from the wall by up to 50mm, this ensures you get the full ATMOS sound from your ARC even if you mount it close to the bottom of your TV. DESIGNED IN ENGLAND - Created by Soundbass, a team of expert mechanical & acoustic engineers from the UK. We worked using the latest technology to ensure you get the best possible audio performance from your new Sonos Arc speaker. Not compatible with Arc Ultra. PRECISION ENGINEERED - To ensure the easiest installation and the best possible acoustic perf