Broan-NuTone IW2-100-N Twisted Pair Wire (UL Listed), 100 ft., 22 gauge NuTone Intercom Wire is an integral part of all NuTone Radio Intercom Systems; such wire has been designed to enable full system performance and to minimize outside interference , dimmer noise, radio frequency interference and other reception problems. If wire other than NuTone specified wire is used in the installation of a NuTone Radio Intercom, the Warranty shall not be applicable to any defect or problem relating to the use of non-NuTone specified wire. Broan-NuTone IW2-100-N Twisted Pair Wire (UL Listed), 100 ft., 22 gauge Features: • UL Listed • 100 ft. • 22 ga. • Twisted Pair 22/2 Cable (UL Listed