Review on Versatile Ceiling and Wall Mount Bracket for Sonos One, One SL, and Play 1 Speaker - Adjustable Tilt & Swivel - Black by Len Cooper

This device does not hold the Sonos One SL very well. I installed it in just 5 days and have already had to reconfigure it 3 times. The speaker will continue to fall face down because the speaker mount cannot support the weight of the speaker. ALSO at the price you should get a pair of brackets for but only 1 comes. I will refund this once I get a better one. Do yourself a favor and look elsewhere.