usell.com (PXHI) 10-Q 2012 Q3 Quarterly report

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report of usell.com, Inc. (the “Company”) on Form 10-Q for the quarter ending September 30, 2012, as filed with the Securities and Exchange Commission on the date hereof, I, Sergio Zyman, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

1. The quarterly report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 and

2. The information contained in the quarterly report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Sergio Zyman

Sergio Zyman

Chief Executive Officer

(Principal Executive Officer)

Dated: November 15, 2012

In connection with the quarterly report of usell.com, Inc. (the “Company”) on Form 10-Q for the quarter ending September 30, 2012, as filed with the Securities and Exchange Commission on the date hereof, I, Michael Brachfeld, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

1. The quarterly report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 and

2. The information contained in the quarterly report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Michael Brachfeld

Michael Brachfeld

Chief Financial Officer

(Principal Financial Officer)

Dated: November 15, 2012