Polk Audio Atrium 4 Outdoor Speakers (Pair， White)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Atrium Series Speakers exceed baseline industrial and military specifications for environmental endurance. </span></li><li><span class="a-list-item"> Anodized aluminum tweeter domes with rubber surrounds are absolutely immune to the elements， offer better power handling and smooth response. </span></li><li><span class="a-list-item"> Tweeter phase cap smooths the frequency response from 12KHz up to 20kHz， the last audible octave. </span></li><li><span class="a-list-item"> Broad coverage baffle design fills a large open outdoor space with big， full-range sound. A more steeply-angled baffle maximizes critical mid- and high-frequency dispersion over a large area， without sacrificing detail. </span></li><li><span class="a-list-item"> Speed-Lock Mounting System for easy， safe one-handed installations even in difficult locations; 5 years parts and labor </span></li><li><span class="a-list-item"> Atrium Series Speakers exceed baseline industrial and military specifications for environmental endurance </span></li><li><span class="a-list-item"> Anodized Aluminum Tweeter Domes with Rubber Surrounds are absolutely immune to the elements， provide the smooth </span></li></ul><!--   Loading EDP related metadata  --><div aria-live="polite" class="a-row a-expander-container a-expander-inline-container"><div aria-expanded="false" class="a-expander-content a-expander-extend-content" style="display: none;"><ul class="a-unordered-list a-vertical a-spacing-none"><li><span class="a-list-item">Newly designed tweeter phase cap smoothes the frequency response from 12KHz up to 20kHz， the last audible octave.</span></li><li><span class="a-list-item">Broad Coverage Baffle Design adapted and applied from our current Atrium design but a more steeply-angled baffle design</span></li><li><span class="a-list-item">Speed-Lock Mounting System for easy， safe one-handed installations even in difficult locations.</span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51rL3Lcb0bL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51EiLAkrdmL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51IeROQ1KML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41u5VFMtOcL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41GyxVS20EL.jpg" noproxy></div></div>