TechnoFirst worked with Alstom on the occasion of the InnoTrans Trade Fair which was held in Berlin from 23 to 26 September 2014. The InnoTrans Trade fair, the meeting place of the world’s major players in the transport industry, gave TechnoFirst and Alstom the opportunity to present a brand new concept, the purpose of which is to improve the acoustic comfort of train passengers by creating a noise reduction bubble around their head.