Made of good-quality materials,anti-corrosion,wear-resistant Directly fit in,easy to install Standard design,convenient to operate Comes with switch and socket,no need to buy them separately,convenient and time-saving Suitable for multiple models of for ,please confirm your car model before ordering to that the item fits perfectly. Cable length : 1M Plug diameter : 3.5mm Applicable to: for following models: Audio 20, Audio 30, Audio 50 Comand (nur NTG2) A-W169, B-W245 C-W203 & CLK-W209 04/04~ M-W164, -X164, R-W251 mit Audio 20, Audio 30 Audio 50 ,Comand W169 for A-class W245 for B-class W203 for C-class W209 for CLK-class X164 for -class W164 for M-class W251 for R-class W221 for S-class R230 for SL-class for -class (2004-2006) Material: Plastic+Copper colour: black Package Contents: 1 x AUX Cable 1 x Switch Socket 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.