This Ground Loop Audio Isolator helps reduce acoustic noise and transformer signal interference. It is designed to eliminate unwanted hum and buzz caused by ground loops when the audio source and connected devices, such as car speakers or home audio systems, share the same power supply, allowing for clearer sound reproduction. The isolator preserves audio quality and does not affect the performance of rock music or other genres, providing an improved listening experience. It supports mono audio setups and is easy to usesimply plug and play with no battery or external power required. Compact and portable, it takes up minimal space and is convenient to carry. Compatible with any device equipped with standard audio jacks, this isolator works well with car audio systems and home stereo setups. Please note that this device only reduces noise caused by shared ground and power sources, and may not eliminate interference from other causes. Users should verify the source of noise before use. Specifications: Model: R2 Input Channels: 2 Output Channels: 2 Input Impedance: 600 ohms Output Impedance: 600 ohms Installation: Plug and play Frequency Response: 20Hz - 20kHz Level Loss: 0.03% @ +22dBu Insulation Resistance: DC 1000V, 100M ohms Isolation Voltage: AC 50Hz-60Hz, 1500V Wiring Port: Standard audio jacks Hot Swap: Supports hot swapping Material: Plastic and metal Color: As shown in image Package Contents: 1 x Audio Isolator Note: The package includes only the items listed above. Other accessories are not included. Due to lighting and display differences, the actual product color may vary slightly from the image. Measurement tolerance is +/- 1-3 cm.