Terraphone Professional Plus V2 practice headsets from Terratrip, the latest version, universal for use on the left or right side of the vehicle. As used by professional rally drivers around the world and are used for clear communications during road sections in between rally stages. Most countries, don't permit the wearing of a rally helmet on road sections, so in noisy rally cars, clear communications between driver and co-driver are still vital and the tedious drone of engine and transmission noise induces tiredness and stress, making communications in the car strenuous to say the least. These Professional Plus V2 headsets keep out the noise and ensure calm communications can resume. They are compatible for use with the Terraphone Professional Plus and V2 amplifier model, any Peltor amplifier or any Peltor compatible amplifier, as well as Stilo with the appropriate adaptor. They feature comfortable full earcup earphones, a fully adjustable noise cancelling microphone boom and a comfortable, adjustable headband. If using an open top car, please select the Clubman practice headsets.