1. Parts Selection: Utilizes two independent o channels with transformer material selected from aerospace-grade components. 2. High sensitivity and high reduction, offering 10-20dB higher sensitivity compared to similar low-end models, delivering full-range tone and pure sound quality. 3. Line Design: Stereo two-channel independent design. Circuit board dimensions: 45mm x 30mm, compact size suitable for installation in small vehicles and tight interior spaces. 4. Connection Method: Features two connection options—input and output via a 3.5mm headphone jack, or direct wiring through two blue terminal connectors. 5. Main Function: Eliminates current noise. Equipped with a ground-isolated o transformer that removes current noise caused by AUX common ground interference. Output and input ground lines are isolated via the transformer, ensuring no shared ground connection. This is an o common ground isolator module designed to reduce noise caused by common ground between the o source and receiving device. Specification: Name: o Common Ground Isolator Color: As shown Material: PCB Size: 55 x 30 x 20mm Package Contents: 3 x o Stereo Isolator Note: Light and display differences may cause slight color variation between the image and the actual item. Measurement allowance is +/- 1-3cm.