Acoustic Audio by Goldwood AA351W Outdoor Mountable Wired 4 Speaker Set Traditional Passive speaker design simply drive power from your amp or receiver Durable and Weatherproof against rain snow sun ice and more Full Range sound coverage with 2-way tweeter and woofer configuration 3 Poly Mica woofers with butyl rubber surrounds .5 PEI dome tweeters Frequency response is 100Hz-20 kHz with 89dB at 8ohm Easy To Install U mounting brackets with hardware White ABS Sealed Cabinets with spring loaded raw wire connectors Big Sound from a compact speaker size of (H x W X D) 6 x 4.25 x 4 each System Requirements Any amplifier home receiver or stereo with raw speaker wire outputs Power from your amp should be no less than 20 and no more than 250 watts per channel CL3 or Raw Speaker Wire to connect your amp to the speakers Applications Home Theater Surround Sound Systems Whole House Audio Systems Business or Retail Installations Patios Decks Pool and Spa Settings What s in the box 4 Passive Speakers Mounting Brackets with Hardware Instruction Manual