The Cisco 7937G External Microphones comes as a pair for your Cisco 7937G Conference Unit. With the use of expansion microphones you will expand the area in which your conference unit can support more participants during a conference call.
Pair of external microphones
Extends up to 6' of coverage per side of base unit
Room Coverage: 30-40 Feet
One Year Warranty Included with Extended Warranty Options at Low Prices!