Keyless Entry System with 2 Flip Key Remotes for Mercedes-Benz W201 W123 W124 W126 R107 R129 Remote Keyless Entry: Lock and unlock the doors and trunk with a push of a button. Two Flip Key Remotes: Hand-held and easy to use, with 2 key blanks. Parking Light Flash: Provides visual confirmation. 3 Remote Auxiliary Outputs: You can use them for the trunk release, window roll-up module, or factory alarm activation. Detailed installation manual with 2 mounting locations for the do-it-yourself installer.