[Professional eliminator]-Effectively isolates ground loop noise, eliminates interference noise caused by phase differences between ultra-long audio cables and different audio devices, and brings you clean and lossless audio. [Safety Hot Swap]- Helps protect the transmission between audio devices, prevents them from being burned by voltage differences or static electricity, and prevents popping noise when plugging or unplugging wires [Sturdy and ]- Classic gold-plated audio socket, repeatedly plugged and unplugged tens of thousands of times, thickened and tightened metal shell, after 6 months of mold polishing, humanized design, exquisite workmanship. [Grounding Setting]- With a grounding switch, you can avoid interference caused by grounding problems. [Wide Application]- This professional grounding ring isolator is suitable for almost any electronic device you need to noise. Such as sound systems, subwoofers, karaoke speakers, mixers, guitars, keyboards, etc. Input interface: 6.5+XLR dual-purpose socket x 2, 3.5AUX x 1 Input impedance: 6002/10K (AC impedance) Output interface: XLRx2 Output impedance: 6002/10K (AC impedance) Frequency response: 20HZ-20KHZ ( Less than 0.2db ref 1khz) Standard loss: Less than 0.7db (ref 1khz 1V rms) Insulation resistance: DC1000V 100 Isolation voltage: AC 50Hz-60Hz -1500v Dimensions: 88 x 70 x 35mm Product weight: 280g Note: This U2 current sound isolator is suitable for all dynamic microphones, laptops, analog mixers, but when using condenser microphones, phantom power is required. Color: Black Material: ABS Package Contents: 1 * U2 audio isolator 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.