Acoustic Audio AA351B Indoor Outdoor 2 Way Speakers 500 Watt Black Pair Acoustic Audio AA351B indoor or outdoor black mountable full range speakers, recommended power is 20-500 watts, frequency response is 100Hz-20 kHz, efficiency is 89dB, 8ohm 2-way design and functionality, 3" poly mica woofers with butyl rubber surrounds, .5" PEI dome tweeters, weather resistant design, mounting brackets and hardware included Quick release spring loaded wire terminals, heavy duty ABS construction sealed cabinets, each speaker size (HxWxD) is 6" x 4.25" x 4", designed and engineered in the USA, full instructions included Use for surround sound, home theater, multiple room systems, industrial sound, bookshelf, bathrooms, kitchens, car audio, marine audio, pools, spas, yards, decks This listing and price is for 1 pair / 2 indoor or outdoor speakers