This item was hooked up, but never installed.  The protective film is still on the grill.  Comes as-shown, and as-is.

Thank you.
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http://www.cyberdata.net/products/voip/digitalanalog/ceilingspkr/index.html
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The CyberData SIP-enabled VoIP Speaker is a Power-over-Ethernet (PoE 802.3af) and Voice-over-IP (VoIP) public address loudspeaker that easily connects into existing local area networks with a single cable connection. The speaker is compatible with most SIP-based IP PBX servers that comply with the SIP RFC 3261. In a non-SIP environment, the speaker is capable of broadcasting audio played on a multicast addresses and port numbers. The speaker is powered via a standard Ethernet Cat 5 cable - no external power supply is needed. Its small footprint and low height allows the speaker to be discretely mounted almost anywhere.

Features:
► Dual speed 10/100 Mbps
► Web-based configuration
► Web-based firmware upgradeable
► External volume control
► High-efficiency driver
► Small footprint (9 inch dia)
► Power-over-ethernet enabled


VoIP IP Speaker Specifications
ProtocolSIP RFC 3261 Compatible
Ethernet I/F10/100 Mbps
Power InputPoE 802.3af
Operating Temperature-10 degrees C to 50 degrees C
(14 degrees F to 122 degrees F)
Payload TypesG711 u-Law
Output Level8 Watts Peak
Sensitivity96dB / 1W / 1M S.P. Level
Regulatory ComplianceFCC Class A, UL 60950
Dimension9" x 2.4"
Warranty2 Year Limited
Part Number010844