Features 1、【Ground Loop Isolator】: Our 2channel audio signal isolator is designed to eliminate ground loop hum, ensuring a clean and noisefree audio experience. By isolating the ground loops that cause unwanted electrical interference, our isolator effectively eliminates buzzing and humming sounds in sound systems, conference microphones, audio players, and more. 2、【Superior Sound Quality】: With its highquality components and passive design, our ground loop isolator maintains the integrity of your audio signals. The RCA (L/R) input and output connections, along with the switchable common ground, provide distortionfree transmission and transform unbalanced coaxial signals into balanced lines for longdistance transmission. Ideal for radio and TV audio transmission, professional audio performances, laptoptomixer connections, and more. 3、【Hum Eliminator for NoiseFree Performance】: Experience crystalclear sound reproduction with our ground loop isolator. By effectively isolating the currentinduced hum caused by ground loops, it prevents power supply interference and unwanted background noise. Protect your equipment from static electricity and excessive voltage differentials while preserving the purity and clarity of your audio signals. 4、【Easy to Use and Compact】: Our ground loop isolator features RCA interfaces for convenient plugandplay installation. Its compact and portable design allows for easy storage and transport. Whether you're setting up a sound system, connecting video systems to speakers, or linking various audio devices, our isolator provides a hasslefree solution for eliminating hum and improving audio quality. 5、【Reliable and Sturdy】: Crafted with sturdy materials, our ground loop isolator ensures longlasting performance. Its robust construction and reliable insulation protect your equipment from strong electric shocks, providing a shield against potential damage. Trust in our passive audio isolator to deliver consistent and reliable results, allowing you to enjoy uninterrupted, highquality audio in any setting. Specification Channel: 2 Input/Output Interface: RCA/RCA Input/Output Impedance: 600 Ω/600 Ω (AC impedance) Isolation Voltage: AC50Hz60Hz0v1500v Insulation Resistance: DC1000V 100MQ Frequency Response: 020KHZ (±0.2 dbref) Input Level: +28dBu (THD0.5%, 50Hz THD0.01%, 1KHz) Loss Attenuation: 0.5DB at 600Q load Distortion: 0.0025% (+4DBU1KHZ) Product Color: Black Product Size: 10.5 * 3 * 2.5cm/4.1 * 1.2 * 1inch Product Weight: 81g/2.8oz   Package List 1 * Audio Signal Isolatorbr /1 * Instructions Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.