Polycom HDX CMA Ceiling Microphone Array, White, 3pc lotCondition:* New old stock, no OEM packaging. As pictured. Additional Notes:* The Polycom Ceiling Microphone Array is a great way to get the room coverage you need while keeping your table clutter-free. * It covers 400 square feet, 360 degrees and they can be daisy-chained. * They also integrate directly with Polycom HDX and Group Systems as well as the SoundStructure series.PolycomHDX CMA