More on Amazon.com : http://www.amazon.com/gp/product/B004O9VOVM?tag=purrfectcatdi-20 <br /> <br />Valcom V-9422 SPOT Sound Masking Speaker 2-Feet x 2-Feet <br /> <br />Reduces intelligibility of oral conversations <br />Self-contained speaker includes built-in white noise masking source and amplifier <br />Front Panel volume control adjustment for proper operation <br />Integral Plenum Ceiling Back-box meets or exceeds ASTM E84 Flame and Smoke Test <br />Utilizes standard CAT 3 5 or 6 Cable for operation
