Direct replacement to your unit. Plug-and-play, direct fit, easy installation. No assembly required. Higher grade of electric components. Improved heat sink and charging capabilities. shipped are tested. Part Number:A4518200675 Number of Pieces:1pc Placement on Vehicle:Antenna Base Universal Fitment:No Fitment:Fits For Merceds Smart Fortwo (451) (450) 2008-2015 Colour:Black & Silver Material:ABS+Metal Package Contents: 1 x Antenna Base 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.