Yellowtec YT3900 Hush+ OnAir Controller With Preamp And Remotehush+ is a convenient controller for your OnAir signaling. In addition to red light control, the hush+ model also allows you to control your microphone signal. Using hush+, you will find several settings in the hush App. hush+ allows for easy control over both, your OnAir LED signals and your mic signal. Its integrated preamp delivers highest available standards with gain from 12dB to 75dB at incredible 129dB input referred noise. On top, you benefit