POWER OF ATTORNEY
KNOW ALL BY THESE PRESENTS, that the undersigned, revoking all powers of
attorney previously granted, hereby constitutes and appoints Thomas G.
Jackson, Senior Vice President, General Counsel and Secretary of Knowles
Corporation, a Delaware corporation (the ?Company?), Mark R. Pacioni,
Assistant General Counsel and Assistant Secretary of the Company,
Raymond D. Cabrera, Senior Vice President, Human Resources and Chief
Administrative Officer of the Company and any one of them acting singly,
as the undersigned?s true and lawful attorney-in-fact, with full
power and authority as hereinafter described on behalf of and in
the name, place and stead of the undersigned to:
(1) prepare and execute, for and on behalf of the undersigned,
all reports to be filed by the undersigned pursuant to Section 16(a)
of the Securities Exchange Act of 1934, as amended (the ?Exchange Act?)
and the rules and regulations promulgated thereunder (including Forms
3, 4, and 5 and any successor forms) (the ?Section 16 Reports?) with
respect to the equity securities of the Company;
(2) do and perform any and all acts for and on behalf of the
undersigned that may be necessary or desirable to complete and
execute any such Section 16 Report, complete and execute any amendment
or amendments thereto, and file such report with the United States
Securities and Exchange Commission and any stock exchange or similar
authority; and
(3) take any other action of any type whatsoever in connection with
the foregoing which, in the opinion of such attorney-in-fact, may be
of benefit to, in the best interest of, or legally required by, the
undersigned, it being understood that the documents executed by such
attorney-in-fact on behalf of the undersigned pursuant to this Power
of Attorney shall be in such form and shall contain such terms and
conditions as such attorney-in-fact may approve in such
attorney-in-fact?s discretion.
The undersigned hereby grants to each such attorney-in-fact full
power and authority to do and perform any and every act and thing
whatsoever requisite, necessary or proper to be done in the exercise
of any of the rights and powers herein granted, as fully to all
intents and purposes as the undersigned might or could do if
personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or
such attorney-in-fact?s substitute or substitutes, shall lawfully
do or cause to be done by virtue of this Power of Attorney and the
rights and powers herein granted.  The undersigned acknowledges that
the foregoing attorneys-in-fact, in serving in such capacity at the
request of the undersigned, are not assuming, nor is the Company
assuming, any of the undersigned?s responsibilities to comply with
Section 16 of the Exchange Act.
This Power of Attorney shall be effective as of the date set forth
below and shall remain in full force and effect until the undersigned
is no longer required to file Section 16 Reports with respect to the
undersigned?s holdings of and transactions in equity securities of the
Company, unless earlier revoked by the undersigned in a signed writing
delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 25th day of June 2018.


By:  /s/ Air A. Bastarrica, Jr.