<p>Integrated with a speaker unit and panel the PC-2852 Ceiling Mount Speaker is of all metallic construction and ideal for use in a voice alarm system. It feature spring clamp mechanism for easy speaker mounting to the ceiling. The input impedance can be easily changed by changing the tap position of the transformer. The push-in type input terminal block makes cable connections easy and allows bridge wiring.</p><table class=features><thead><tr><th colspan=2>Features</th></tr></thead><tbody><tr><td class=feature>Type</td><td>Ceiling </td></tr><tr><td class=feature>Single/ Pair</td><td>Single </td></tr><tr><td class=feature>Wall mountable</td><td>Yes </td></tr><tr><td class=feature>Ceiling Speaker</td><td>Yes </td></tr><tr><td class=feature>Professional</td><td>Yes </td></tr></tbody></table>