The Bose 251 Environmental Speakers deliver full, rich sound for your listening pleasure on the deck, by the pool or on the porch. Built to withstand the elements, these award-winning speakers provide reliable, year-round performance that will have you humming in the sun or singing in the rain.

Two 2 1/2" Twiddler™ drivers in an Articulated Array® speaker design

Lifelike stereo sound over a larger listening area instead of in one small "sweet spot" as with conventional speakers.

One 5 1/4" woofer in a patented multi-chambered bass enclosure

Uniquely structured, the chambers within this patented design filter out unwanted audible distortion in the low-frequency range. They also improve speaker efficiency, resulting in deeper bass from a small enclosure.

• Talc- and glass-filled polypropylene cabinet
• Added durability against extreme conditions.
• Patented multi-chamber bass enclosure for deep bass without audible distortion.
• Engineered to withstand snow, sun, rain, ice and saltwater spray.