BEHRINGER NR100 Noise Reducer Behringer Noise Gate I am selling this because it didn't work for me. There are minor scratches from use. Operation has been confirmed. I do not recommend this to those who are sensitive to such things. Product Overview The BEHRINGER NR100 Noise Reducer is designed to improve the sound quality of guitars and other instruments. It effectively reduces noise and achieves a clear sound. It is equipped with SEND and RETURN terminals, making it easy to connect to other devices. It also has a mute function, allowing you to temporarily turn off the sound during performance.