Feature: 1. 1. Activate by OBD2 Plug and Play, Easy to use. 2. 2. Connect mobile phone with car only via cable. 3. 3. Support compatible for Apple Carplay and Android auto. (Compatible for android auto only support car firmware version from 2016.9) 4. 4. Original Protocol Communication, not effect dealer warranty. 5. 5. Compatible for Mercedes NTG5.1 via OBD2. Specification: Compatible models(COMAND NTG5s1):A-Class W176 Date of manufacture 12.2015+B-Class W246 Date of manufacture 12.2015+E-Class W213 Date of manufacture 01.2016+CLA-Class W117 Date of manufacture 12.2015+GLA-Class W156 Date of manufacture 12.2015+GLE-Class W166 Date of manufacture 01.2016+GLE Coupe W292 Date of manufacture 01.2016+GLE-Class X166 Date of manufacture 01.2016+CLS-Class W218 Date of manufacture 01.2016+C/GLC/S Series NTG5.0 and NTG5E are not support! (Need to use video interface and compatible for iponoe box to achieve.)(If your headunit is old version, the function will not normal work or can not be opened, you need update your hedunit to latest version online)Please don't insert this OBD tool for unsupported models, or you need take all consequences. Many Thanks. Package List: 1*NTG5 S1 Note: 1. Must ensure that the siri option of your compatible for iPhone is keep opening status.2. Must use original charging cable of your compatible for iPhone.3. Carplay is an app compatible for Apple's IOS system, only compatible for iPhone can use the Carplay app. (Ip5 or Ip5 above are supported)4. Compatible for Android Auto is an app of the Android system, compatible for Android phone can use the Android Auto app. (But not all compatible for Android phone support Android Auto)