Bose® 151 environmental speakers feature enhanced performance & durability for full stereo sound in a wide listening area. Sleek styling & rugged construction make these our most popular outdoor stereo speakers for music around the pool, on a porch, or even on a boat. Adjustable mounting brackets allow you to hang these outside speakers vertically or horizontally, so they blend easily into your environment. Step up to Bose sound outdoors Full stereo sound over a wide listening area Suitable for use as boat speakers Tested to withstand snow, rain, salt & extreme temperatures Five-year limited warranty