Valcom V-9422 SPOT Sound Masking Speaker， 2-Feet x 2-Feet<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Reduces intelligibility of oral conversations</li><li>Self-contained speaker includes built-in white noise masking source and amplifier</li><li>Front Panel volume control adjustment for proper operation</li><li>Integral Plenum Ceiling Back-box meets or exceeds ASTM E84 Flame and Smoke Test</li><li>Utilizes standard CAT 3， 5 or 6 Cable for operation</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41JKWBhVo9L.jpg" noproxy>