This is a dual-channel audio network cable extender with a built-in ADC audio processing chip and a low-offset, low-impedance differential line driver, which effectively solves audio distortion and noise caused by signal interference. Our audio to network cable extender does not distinguish between transmitting and receiving, and has a built-in noise reduction circuit to eliminate noise. Lotus interface, plug and play. Colour:Gray Material:Plastic+Metal Package Contents: 1 pair * audio network cable extender 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.