Provide excellent audio performance and solve the noise problem caused by high potential difference. Noise reduction design, no noise current sound, restore more sound details. It is used to eliminate the noise of the computer connected to the monitor audio, the noise generated by the laptop connected to the mixer; the noise generated by the long-distance transmission between devices and devices; the noise generated by the impedance mismatch between devices. Scope of application: It is suitable for high-fidelity distribution display, digital set-top box, HI-FI home theater, large-screen projection video conferencing, public video broadcasting system, remote multimedia education, classroom care, high-fidelity flat-panel video media advertising transmission demonstration, car modified audio and other audio system cascade main equipment. Parameters: Input: 3.5+RCA Lotus head interface Output: 3.5+RCA Lotus head interface Isolation transformer: Use professional isolation transformer independent channel Frequency bandwidth: 20hz-20Khz Isolation voltage: AC50HZ-60HZ0V-1500v Output loss: Less than 2db Input and output impedance: 600 ohms (AC impedance) Power supply: No external power supply is required, plug and play. The color of the audio cable is sent randomly, No specification is accepted and does not affect the use. Colour:Black Material:Aluminum Alloy Package Contents: 1 * 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.