Good performance part for DIYers - BENZ C class scanner Small and portable technical item works with Mercedes Benz C-CLASS including (C180, C200, C230, C240, C320, C55, C32, CLK200, CLK240, CLK320, CLK500, CLK55, CL500, CL600, CL55, CL65), stand alone, no need extra battery or laptops, keep your mechanic accountable, know your vehicles Trouble Codes before taking it to the workshop. *Dimensions: 32 inches in length. Head unit: 2 1/8 inch x 3 1/8 inch x 3/4 inch *Port: 16-pin OBDII Standard Socket *LED Display *No batteries needed. Power is directly supplied by the diagnostic socket