About the Russound OutBack 5B65Smk2 Affordable stereo sound from a single speaker Russound's rugged, value-packed 5B65Smk2 offers great sound coupled with versatile outdoor installation options. This weather-resistant speaker lets you enjoy your music on the patio or deck. And it's a stereo-input speaker that plays both left and right halves of the music signal from a single point. Use the included bracket to mount it on the wall or as a kickstand to position it on a horizontal surface. Don't fear the weather This speaker can handle whatever weather comes its way. Its salt-tested, marine-grade hardware and aluminum grille even allow it to withstand salty environments. The 5B65Smk2's enclosure is fully sealed to protect the drivers and internal components from potential weather-related harm.