URC — HDA High-Resolution IP-Based Distributed Audio System

With our revolutionary secure clamping system and easy wire connectivity, they are true tool-less architectural speakers. Simply connect the speaker wire to the removable terminals, install the speaker into the cut out and push down on the levers to engage the clamps to the drywall to lock the speaker in place.

https://www.universalremote.com/product-category/products/speakers/