Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: New 4 Buttons Remote Key Case Shell for Mercedes-Benz CL55 AMG C230 C240 S600 E320
Product description: Item notes: 1.It can be used for several different years and models and you can check with your local dealer to verify it's compatibility with your vehicle. 2.Please be sure you have a factory keyless entry system and be certain that this is the proper key for your vehicle. 3.This is just a key cover shell, there is no interior(remote/electronics/transponder chips) inside. Features: 1. Each item have been tested before ship. 2. Perfect replacement for the original motors and make you key like new. 3. 4Buttons(lock unlock trunk and panic). Work with: 1999 Mercedes-Benz S320 1999 Mercedes-Benz S420 1999 Mercedes-Benz E300 2006 Mercedes-Benz CLK350 2005 Mercedes-Benz C55 AMG 2005 Mercedes-Benz SL65 AMG 2005 Mercedes-Benz SLK55 AMG 2005-2006 Mercedes-Benz CL65 AMG 2003-2005 Mercedes-Benz E500 2003-2005 Mercedes-Benz G55 AMG 2003-2005 Mercedes-Benz SL55 AMG 2002-2004 Mercedes-Benz C32 AMG 2002-2005 Mercedes-Benz G500 2002-2004 Mercedes-Benz SLK32 AMG 2001-2005 Mercedes-Benz C240 2001-2005 Mercedes-Benz C320 2001-2006 Mercedes-Benz CL55 AMG 2001-2006 Mercedes-Benz CLK55 AMG 2001-2004 Mercedes-Benz SLK320 2000-2005 Mercedes-Benz S430 2000-2004 Mercedes-Benz SLK230 1999-2005 Mercedes-Benz C230(2001 is not include) 1999-2000 Mercedes-Benz C280 1999-2000 Mercedes-Benz C43 AMG 1999-2005 Mercedes-Benz CL500 1999-2006 Mercedes-Benz CL600(2000 is not include) 1999-2005 Mercedes-Benz CLK320 1999-2005 Mercedes-Benz E320 1999-2002 Mercedes-Benz E430 1999-2005 Mercedes-Benz E55 AMG 1999-2005 Mercedes-Benz S500 1999-2005 Mercedes-Benz S600 1999-2005 Mercedes-Benz SL500 1999-2005 Mercedes-Benz SL600(2003 is not include) Package include: 1 x 4Buttons smart key shell for Mercedes-Benz 1 x cross screwdriver
Product feature: 4Buttons(lock unlock trunk and panic), Each item have been tested before ship, This is just a key cover shell, there is no interior(remote/electronics/transponder chips) inside, If you have a worn and broken key blank /remote case, all you need to do is remove the internal component from your old remote and put it in this case, Package include:1 x 4Buttons smart key shell for Mercedes-Benz/1 x cross screwdriver
Product brand: Bestfavor
Target attributes: Type
Answer: attribute: type
value: smart key
source: product feature
attribute: type
value: smart key
source: product description
attribute: type
value: keyless entry
source: product description
attribute: type
value: remote key
source: product title