Marketing Mix is the 4P’s – Product, Place, Price, and Promotion.

Product – What are you selling?  Tangible or intangible item?

Place – How the product will be provided to the customer.  Directly or through a partner.  Also how are going to reach them online and offline?

Price – Although this pertains to cost, it’s truly about the value your product or service offers.

Promotion – The marketing communication strategies and techniques all fall under the promotion heading. These may include advertising, sales promotions, special offers and public relations.