**********Atrium Series Speakers exceed baseline industrial and military specifications for environmental endurance. *****Anodized aluminum tweeter domes with rubber surrounds are absolutely immune to the elements, offer better power handling and smooth response. *****Tweeter phase cap smooths the frequency response from 12KHz up to 20kHz, the last audible octave. *****100 Feet of 16-gauge speaker wire*****Connects audio speakers to your A/V receiver or amplifier*****The plastic jacket around the speaker wire helps to deliver high-quality undistorted signals to and from all of your audio equipment