Mass delete contact in CRM

I have a question regarding Mass deleting – We have uploaded several listing into the database and now want to start deleting several of the old listings. What is the easiest way to MASS delete a group of listing as opposed to just deleting each on individually which seems to take a lot longer? Please advise.

As you mentioned, you can delete a list and its members by clicking the x button on the right of the list.

For mass delete option, it is applied to search result and advanced search result. For example, if you search all contacts with first name “Mike” and resides in California, the search result can be deleted all together. You can also search for contact records created before certain date, then delete all of them using mass delete.