It depends. Where do you live, and did you buy new or used/“refurbished”? In the U.S., Sandisk provides a 1-year warranty on new players. Other countries may vary. For used/refurbished players, warranty support (if any) is provided by the seller, not Sandisk.
P.S.: In the future, you should post your questions and comments in the board for your particular model (Clip/Clip+, Fuze+, etc).
Complete warranty information is at the end of all user manuals for your particular model.