Niles CM710FX Pair 7" Surround Effects Ceiling Mount Loudspeaker Stereo sound from a single speaker, use one in your primary room and the other in a secondary room 7-inch polypropylene woofer provides "Best in Class" bass Dual 13mm tweeters have a wide dispersion for high frequencies Handles up to 75 Watts of power Weather resistant design for indoor and outdoor use