Build your own intercom system with the Terraphone professional, simply add your choice of headsets to the Terraphone amplifier. Cross compatible with the Terraphone Clubman and also available with an optional adapter (T040) for Peltor helmets. Professional Amplifier V2 (T036) Features Two volume controls Powered from car battery Noise cancelling microphones for improved sound reproduction 2 way radio connection with radio isolation switch AVC (auto volume control), eliminates 100% of amplified background noise Limiter, automatically reduces maximum amplified noise for as short period. If you shout, the other person will not be deafened, the electronics temporarily reduces the maximum peak of amplification. External Connections Connection for telephone via Bluetooth adapter (optional adapter T030) Connection to interface with 2 way radio (optional radio wiring kit T038) Audio output socket for MP3 recorder (recording pace notes) or video camera Audio input, for music or other audio devices Headsets Non helmet practice headsets for crew communication on road sections or when preparing pace notes Available in both full face and open face noise cancelling headset options Accessories Full face noise cancelling headset. Part No T034 Open face noise cancelling headset. Part No. T035 Practice headset (none helmet headset). Part No. T037 Bluetooth telephone adapter. Part No. T030 2 Way radio kit. Part No. T038 Peltor helmet adapter Part No. T040. Stilo helmet adapter. Part No T040A.