Efficient sound distribution in any room should begin at the top - with Califone ceiling or wall-mounted speakers. The CS308 speakers are designed to provide the clearest classroom audio amplification. Engineered with a frequency response that's optimal for vocal reproduction and multimedia presentations, the two-way speakers create whole room audio immersion with superior coverage. Teachers and students will notice the improved sound quality, whether the speakers are connected to the Califone Infrared Classroom Audio System or to other sources. Each package includes two speakers & two brackets (one pair of each). Their flush-mount installation & paintable grilles help blend the speakers into the architecture (indoor or outdoor installations), so they'll be heard but not noticed.