Designed especially for outdoor use, the Boston Acoustics Voyager Metro II Single-Speaker Stereo 6-1/2-Inch Outdoor Speaker brings exceptional sound to open-air environments. This speaker has been engineered with Boston's best audio technologies to ensure stunning audio reproduction across a wide range of frequencies. Kortec soft-dome tweeters offers crisp, high frequencies, while graphite-injected woofers deliver powerful bass response. And with its waterproof polypropylene cabinet, the speaker can withstand even the harshest weather and temperature extremes.