FCC ID: 2ADQJ-YSP88459SM WiFi/BT Combo Module

ESSYS CO.,LTD 55, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea Aug 17, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 To Whom It May Concern:

I, the undersigned, hereby authorize SGS Korea Co., Ltd. and hereafter referred to as SGS Korea, to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by SGS Korea Co., Ltd. on our behalf shall have the same effect as acts of our own. I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). In authorizing SGS Korea as our agent, we still recognize that we are responsible to:

a) comply with the relevant provisions of the certification program;

b) make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints;

c) make claims regarding certification only in respect of the scope for which certification has been granted;

d) do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized;

e) upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division;

f) use certification only to indicate the products are certified as being in conformity with specified standards;

g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner;

h) ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division;

ESSYS CO.,LTD 55, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea i) j) keep a record of all complaints made known to the us relating to the products compliance with requirements of the relevant standard and to make these records available to the Certification Division when requested;

take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification;

k) document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely yours, Name / Title : Kim Sung Hoon / Research Engineer Company Name : ESSYS CO.,LTD

SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name ESSYS CO.,LTD Applicant Declaration Address Grantee Code FCC ID Authorized Contact Name Contact Email Contact Phone 55, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea 2ADQJ 2ADQJ-YSP88459SM Kim Sung Hoon ksh@essys.co.kr 82-32-215-0923 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare;

a) b) c) d) e) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for:

labeling the equipment with the exact FCC ID as specified in this application,

(1)

(2) compliance statement labeling pursuant to the applicable rules,

(3) compliance of the equipment with the applicable technical rules, if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCCs technical requirements. in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. in accordance with ISO 17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements.

(1)

(2)

(3) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. the Applicant shall, upon request by SGS, at the Applicants expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) g) neither the Applicant nor any party to the application is subject to a denial of Federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a party for these purposes. the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Link to the Covered List: Covered List ESSYS CO.,LTD (the applicant) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. ESSYS CO.,LTD (the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered list, established pursuant to 1.50002, as an entity producing covered equipment. Applicant Signature:

Date:2023-08-17 Print Name:

Title:

Kim Sung Hoon Research Engineer

*NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database QSF27-14-04 Rev 1.0 Rev. Feb 6, 2023 Page 1 of 1 Original Issue: Jan. 4, 2021

ESSYS Co., Ltd. 55, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea AUG 16, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 Certification and Engineering Bureau ISED Canada 3701 Carling Ave., Bldg. 94, Ottawa, ON, K2H 8S2 Class II Permissive Change for FCC ID: 2ADQJ-YSP88459SM / IC : 28512-YSP88459SM We, ESSYS Co., Ltd., as a manufacturer of following models hereby declare that they have the following differences in supported features. Model : BWR-YSP88459-SMA-LGA The reason for this update is the dualization of the component vendor. Consequently, a change has been implemented by amending the SAW filter within the Bluetooth pathway. new component has similar RF characteristics with previous component. All of other components are unchanged. For details, please refer to Annex. Sincerely Yours, Name : Sung Hoon Kim _________________ Title : Research Engineer Company : ESSYS Co., Ltd. Variant Difference Basic Model : BWR-YSP88459-SMA Variant Model : BWR-YSP88459-SMA-LGA Basic Model : BWR-YSP88459-SMA Variant Model : BWR-YSP88459-SMA-LGA

ESSYS CO.,LTD 55, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea Aug 17, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 Request of Confidentiality for FCC ID : 2ADQJ-YSP88459SM To Whom It May Concern:

Pursuant to Sections 0.457 and 0.459 of the Commissions Rules (CFR 47), and Section 552 (b)

(4) of the Freedom of Information Act, ESSYS CO.,LTD hereby requests confidentiality and treatment of certain information accompanying this application. The materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. We are also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give ESSYS CO.,LTD temporary confidentiality of commercially sensitive information prior to product release. The requested Permanent and Temporary Confidential exhibits are listed as follows:

Permanent Short-Term 1 2 3 4 5 6 7 8 CONFIDENTIAL LIST Block Diagram Operational Descriptions Schematics External Photos Internal Photos Test-Setup Photos ESSYS CO.,LTD 55, Gaetbeol-ro, Yeonsu-gu, Incheon, Republic of Korea The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be made public before the date of the Grant for this application. Sincerely yours,

(Sign) Name / Title : Kim Sung Hoon / Research Engineer Company Name : ESSYS CO.,LTD