<h4>AVM 1 Sense Microphone</h4><p>The AVM-1 sense microphone mounts discreetly into ceilings and provides an analog output over a balanced audio connection. Designed for use with AutoVolume compensation as featured in select Bose sound processors the microphone delivers a continuous ambient room noise reference. This allows the AutoVolume algorithm to adjust output zone levels automatically based on activity in the room.<br /><br /><strong> FEATURES </strong><br />• Discreet flush-mounted design blends seamlessly into common ceiling surfaces<br />• Omnidirectional condenser microphone capsule operates on phantom power and can be located up to 610 meters (2000 feet) away from the sound processor<br />• Spring clips help make installation easy while keeping the microphone firmly in place<br />• Condensation cover protects wire terminals from moisture collection and ensures sustained operation in above-ceiling mounting locations</p><table class=features><thead><tr><th colspan=2>Features</th></tr></thead><tbody><tr><td class=feature>Type</td><td>Ceiling </td></tr></tbody></table>