The Avaya B100 Expansion Microphones (700501539) are an optional accessory for the Avaya B149, Avaya B159 and Avaya B179 Conference phones.
- Used for greater microphone coverage on larger conference tables or when number of participants is greater than 10 Increases the range of your Avaya B100 series conference phone from 30 square meters to up to 70 square meters (750 sq. feet)
- Includes 4 ft. and 8 ft. connection cables
- Compatible with Avaya B149, B159, B179, and B189 conference phones