2108766362 is a scam for the fake check for goods posted on craigslist.
do not fall for it.

This caller is using counterfeit checks for usually the same amount and sending it to victims of their scam.  Here is a message I am sending to other victims:

This check is a counterfeit check from a scam by a person unknown at this time.  Please let the victim know they need to contact their local Police Department Financial Crimes and to file a complaint with the FBI.  The link I have found is:

http://www.ic3.gov/default.aspx

Also the FTC has a link on their website to file a complaint:  https://www.ftc.gov/

How the victim was notified; Craigslist, Facebook, or other texting.

The instructions from the scam artist, how to give the money back or ship the sold item.