It looks like somebody had a few laughs giving this USB and having the recipient think it was actually a real Mercedes-Benz key fob, if only for a brief moment. However, in order to pull off ...

The key fob for most Mercedes-Benzes manufactured since 2003 is pretty much standard looking between all models, but we decided to show you how changing the batteries for a W211 E-Class looks like.

If you're looking to pick up a new key fob, or repair one, you might wonder how long programming it takes and whether or not you can do it yourself.

WISN 12 asked why the key fob programmer was sought after. "Basically, they can program 70, 80% of the brands -- Dodge, Ford, Nissan," Barrera said.