Theater Solutions 2R4S Outdoor Sandstone Rock 2 Speaker Set for Yard Patio Pool Spa Theater Solutions R4S indoor or outdoor weather resistant sandstone speakers, recommended power is 10-125 watts per speaker, efficiency is 94dB, frequency response is 80Hz-20 kHz 2-way design and functionality, 8ohm, deluxe 4.5" poly mica woofers with sealed voice coils, butyl rubber surrounds, ferro fluid cooled soft dome tweeters, silicone encased 4" wire leads Silicone multi-layer composite cabinets, rust resistant grills, 20 degree angled drivers, (HxWxD) 8"7.5"6.75", instructions included, these speakers require a receiver or amplifier to power them Use for back yard decor and entertainment, sunrooms, atriums, patios, decks, garden, pool, spa, business / office outdoor dcor This listing and price is for 1 pair / 2 outdoor rock speakers