The Valcom VIP-402A allows equal distribution of sound throughout a large open area without having to hardwire in ceiling speakers. When a drop tile ceiling is being used, the VIP-402A fits into a standard 2'x2' tile area, allowing unobtrusive audio and easy wiring above the grid assembly. A single RJ45 PoE connection allows you to transmit audio via SIP to the speaker with no additional power requirements.