Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER
PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Ken Kannappan, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.	the Annual Report of Plantronics, Inc. on Form 10-K for the fiscal year ended April 2, 2005 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2.	that information contained in the Annual Report on Form 10-K fairly presents, in all material respects, the financial condition and results of operations of Plantronics, Inc.

By: /s/ Ken Kannappan
Name: Ken Kannappan
Title: Chief Executive Officer
Date: May 31, 2005

I, Barbara Scherer, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.	the Annual Report of Plantronics, Inc. on Form 10-K for the fiscal year ended April 2, 2005 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 Annual Report on Form 10-K fairly presents in all material respects the financial condition and results of operations of Plantronics, Inc..

By: /s/ Barbara Scherer
Name: Barbara Scherer
Title:Chief Financial Officer
Date: May 31, 2005

This certification accompanies the Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.