Two NCBT65 wireless Bluetooth ceiling speaker pairs from Power Dynamics that can be installed in two different rooms of your home. To set it up, all of the essential cables are supplied, with each pair having an active/passive design for a simple set up process. You can pair a smart device like a smartphone or tablet with these active Bluetooth ceiling speakers and stream audio wirelessly to one pair of speakers at a time. Once paired, you are able to play audio from any app or website of your choice. These active/passive ceiling speakers include a line input connection on each pair of speakers.