Soundtube SM590i-II-WX-WH Outdoor SpeakerSoundTube SM590i II WX Outdoor Surface Mount Speaker in White SoundTube's WX Weather Guard technology utilizes a dual layer hydrophobic material inside the speaker grille and an aluminum grille with powder coat finish to keep water from the drivers and internal electronics in even the most extreme weather conditions. The speaker includes a higher power output for long throw and high SPL requirements as well as one 5. 25 inch polypropylene woofer and