On Vingtor Stentofon’s YouTube channel, Piet De Vriendt, commercial product manager for building security and public at Vingtor Stentofon, discusses a technical data sheet he made, which is designed to help dealers give the perfect noise reduction demonstration. The noise cancelling function comes free with Vingtor Stentofon intercoms. In the video, De Vriendt shows the products to use in the demo and explains how to set them up. On one unit, the demonstrator will turn the noise cancelation feature off. De Vriendt then performs the demonstration, using an app to produce background noise. Visit http://bit.ly/2bQKulN to see the video.