
They work well and install fairly quickly for the Play: One's Set. It took about 20 minutes to understand the first one and 10 minutes to do the second. It's easy to adjust the corners, but there's no way to lock the corners in place, so an accidental bump could change the position of the mounts. There are many parts in the box and it took a few minutes to figure out which ones you need depending on the speaker model.

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