Description: it is an audio isolator with ground loop, acoustic noise filter, eliminates audio current sound, transformer signal noise reducer. Delete. Eliminate ground noise when the audio source and (some car/home audio speakers) use the same power source for clear music enjoyment, and the best of it will bloom. Quality. It is no rock music damage, better experience and can be used on mono. Easy to use, just plug and play, no batteries required. Small and portable, this gadget doesn't take up much space and is easy to take up. This product can only eliminate the noise and noise caused by the common power supply and common ground products, it cannot eliminate the noise caused by other causes, so you need to confirm the noise by yourself. Specification:Model:Input Channel 2Output Channel 2Input Impedance 600Omega; Output impedance 600Omega; Desktop plug and play installationFrequency response 20Hz-20KHzle level loss; 0.03%+22dBu DC1000V 100MOmega insulation resistance; AC Isolation Voltage 50Hz-60Hz/0V-1500V RCA Port Cabling 100g Dimensions: 72x40x25mm Hot Swap Support Hot Swap Material: Metal Color: Black Package Contents: 1 x Audio Insulator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3cm.