A Brand new Product from Next Generation TechnologiesIf you use a Laptop or PC to provide your audio playback you have probably encountered an unwanted hum, buzz or warbling noise in the background, this is usually caused by electrical noise from the power supply or a ground loop. These unwated sounds can be impossibly difficult to get rid of.Our Aftersound Audio Cleaner pro is a high quality Ground Loop Isolator and is guaranteed to remove all unwanted noise or your money back.Fits in between your PC / Laptop sound card output and your mixer / Amplifier.Works with all line level stereo audio signals.Specifications Gold Plated RCA (Phono) connectors. Distortion less than 0.001%. Frequency Response 40Hz - 32Khz