Features: Designed to work with any GN Netcom professional headset fitted with a quick disconnect (QD). Some older system phones may require the use of an amplifier such as GN 8210. Smartcord incorporates a very low current microphone, powered from the telephone system. GN Netcom's vision is to be the world's leading provider of communications solutions that enable people to communicate more easily & effectively. GN Netcom's product portfolio covers a wide range of products for a variety of different applications & environments.