100W power capability and 33 to 27Hz frequency response make music, movies, and other audio content sound better 6.5" cone driver and 0.75" dome tweeter work together to deliver incredible clarity and powerful bass Patented rotating cam system enables easy and secure mounting with no vibrations Slim bezel magnetic grille allows for seamless ceiling installation, making it ideal for kitchens, dining rooms, bathrooms, and more Compatible with Polk TSi & RTi series speakers, available separately, to create room-filling multi-speaker setups Required accessories (sold separately): In-wall speaker wire (make sure to measure the room so you'll know how much wire to get)