Target offers the Bose 251 Wall-Mount Outdoor Environmental Speakers in White, model no. 24644, for an in-cart price of $279.30 with free shipping. (Amazon has them for the same price.) That's the lowest total price we could find by $119. Each features a water-resistant composite casing, articulated array speaker design, multi-chamber bass enclosure, and can withstand -22° to 140° temperatures.