DigitalLife GI35-A | 3.5mm TRS Ground Loop Noise Isolator (Hum Eliminator, Passive, F/F) – For Audio Devices, Headphones, and Speakers

DigitalLife 3.5mm Audio Ground Loop Noise Isolator - Hum Eliminator, GI35-A

BESIGN Ground Loop Noise Isolator, Ground Loop Buzzing Noise Filter, Ground Loop Buzzing Noise Elimination for Car Audio and Home Stereo System with 3.5mm Audio Cable

Pyle Compact Mini Hum Eliminator Box - 2 Channel Passive Ground Loop Isolator, Noise Filter,AC Buzz Destroyer, Hum Killer w/ 1/4" TRS Phone,XLR Input/Output, Uses 1:1 Isolation Transformer