2A2KIDTRHPSTRDDTR STITCH LED KIDS HEADPHONE

You Tec Ltd Santok House Unit L, Braintree Industrial Estate, Braintree Road, South Ruislip Middlesex, HA4 0EJ, United Kingdom Date: Jan. 04, 2024 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2A2KIDTRHPSTRD US Agent – Attestation Statement / Part 2.911(d)(7) [ You Tec Ltd] certifies, that as of [Jan. 04, 2024], we have designated FCC US Agent, LLC to accept service of process on our behalf for FCC ID: 2A2KIDTRHPSTRD. [ You Tec Ltd], accepts to maintain an agent of service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. FCC US Agent, LLC, accepts as of the date of the filing of this application, the obligation of being the designated agent for the purpose of accepting service of process on behalf of [You Tec Ltd] for FCC ID: 2A2KIDTRHPSTRD. Designated Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, Company: [You Tec Ltd] Designated Agent: FCC US Agent, LLC Company Representative: [Cornel Nicolae Calin] Tel: +86 186-8215-1582 Email: [email protected] FRN: 0031138944 Designated Agent Representative: Tim Payne Signature: Signature:

You Tec Ltd. Attestation Statements Not Covered Entity Applicant To: Federal Communications Commission Date: 2024-01-02 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(ii) filing FCC ID: 2A2KIDTRHPSTRD You Tec Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, ______________________ Signature Printed name: Cornel Nicolae Calin Title: Head of Production

You Tec Ltd. Attestation Statements Not Covered Equipment To: Federal Communications Commission Date: 2024-01-02 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) filing FCC ID: 2A2KIDTRHPSTRD You Tec 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. Sincerely, ______________________ Signature Printed name: Cornel Nicolae Calin Title: Head of Production

TCB Authority to Act as Agent Number: MS-0045317 Revision: 0 Effective date: Oct 8, 2021 Page 1 of 1 You Tec Ltd. Authority to Act as Agent Date: 2024-01-02 TUV Rheinland of North America, Inc. 1279 Quarry Lane., Suite. A Pleasanton, CA 94566 To Whom It May Concern: I appoint TÜV Rheinland (Shenzhen) Co., Ltd. to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the FCC or Industry Canada’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by TUV Rheinland Group, still resides with You Tec Ltd., Santok House Unit L, Braintree Industrial Estate, Braintree Road, South Ruislip, Middlesex, United Kingdom. For TCB applications, We certify that we are not subject to 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. Further, no party, as defined in 47 CFR 1.2002 (b), to the application is subject to denial of federal benefits, that includes FCC benefits. Thank you, Agency Agreement Date: 2025-01-01 Agreement is valid for 12 months from the above date. By: __________________________ Cornel Nicolae Calin (Signature) (Print name) Head of Production +86 186-8215-1582 (Title) (Telephone) On behalf of: You Tec Ltd. You Tec Ltd. (Company Name)

Request for Confidentiality Letter MS-0044715 Page 1 of 1 Revision 0 You Tec Ltd. Date: 2024-01-02 Subject: Confidentiality Request for FCC ID: 2A2KIDTRHPSTRD Pursuant to FCC 47 CRF 0.457(d) and 0.459 and IC RSP-100, Section 10, the applicant requests that a part of the subject FCC/IC application be held confidential. Type of Confidentiality Requested Exhibit Short Term Permanent Block Diagrams Short Term Permanent Internal Photos Short Term Permanent Operation Description/Theory of Operation Short Term Permanent Tune-Up Procedure Short Term Permanent Schematics Short Term Permanent User’s Manual Short Term n/a Test Setup Short Term n/a External Photos Short Term Permanent Part List/ Antenna Construction You Tec Ltd. has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality: The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Short-Term Confidentiality: The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 180 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify TUV Rheinland in the event information regarding the product or the product is made available to the public. TUV Rheinland will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705. Sincerely, By: _________________________________ Cornel Nicolae Calin / Head of Production (Signature) (Print name/Title)

Fig.1. External view-01 Fig.2. External view-02 Fig.3. External view-03

size: 17 x 28 mm

Fig.4. Internal view-01 Fig.5. Internal view-02 Fig.6. PCB view-01 Fig.7. PCB view-02 Fig.8. Battery view-01 Fig.9. Battery view-02 Fig.10. Speaker view

Prüfbericht - Produkte Test Report - Products Prüfbericht-Nr.: Test report no.: CN230KWE 001 Auftrags-Nr.: Order no.: 168451365 Seite 1 von 13 Page 1 of 13 Kunden-Referenz-Nr.: Client reference no.: N/A Auftragsdatum: Order date: 2023-11-13 Auftraggeber: Client: You Tec Ltd. Santok House Unit L, Braintree Industrial Estate, Braintree Road, South Ruislip, Middlesex, HA4 0EJ United Kingdom Prüfgegenstand: Test item: DTR STITCH LED KIDS HEADPHONE Bezeichnung / Typ-Nr.: Identification / Type no.: DTRHPSTRDPRM Auftrags-Inhalt: Order content: Test Report Prüfgrundlage: Test specification: FCC CFR Title 47, Part 15, Subpart B Wareneingangsdatum: Date of sample receipt: 2023-11-13 Please refer to Photo Document Prüfmuster-Nr.: Test sample no: A003597080-002 Prüfzeitraum: Testing period: 2023-11-23 - 2023-11-28 Ort der Prüfung: Place of testing: TÜV Rheinland (Shenzhen) Co., Ltd. Prüflaboratorium: Testing laboratory: TÜV Rheinland (Shenzhen) Co., Ltd. Prüfergebnis*: Test result*: Pass geprüft von: tested by: genehmigt von: authorized by: Datum: Date: 2023-12-06 Ausstellungsdatum: Issue date: 2023-12-06 Stellung / Position: Sachverständige(r)/Expert Stellung / Position: Sachverständige(r)/Expert Sonstiges / Other: FCC ID: 2A2KIDTRHPSTRD Zustand des Prüfgegenstandes bei Anlieferung: Condition of the test item at delivery: Prüfmuster vollständig und unbeschädigt Test item complete and undamaged * Legende: P(ass) = entspricht o.g. Prüfgrundlage(n) F(ail) = entspricht nicht o.g. Prüfgrundlage(n) N/A = nicht anwendbar N/T = nicht getestet * Legend: P(ass) = passed a.m. test specification(s) F(ail) = failed a.m. test specification(s) N/A = not applicable N/T = not tested Dieser Prüfbericht bezieht sich nur auf das o.g. Prüfmuster und darf ohne Genehmigung der Prüfstelle nicht auszugsweise vervielfältigt werden. Dieser Bericht berechtigt nicht zur Verwendung eines Prüfzeichens. This test report only relates to the above mentioned test sample. Without permission of the test center this test report is not permitted to be duplicated in extracts. This test report does not entitle to carry any test mark. TUV Rheinland (Shenzhen) Co., Ltd., 1601-1604, 17-18F, Tower A Building 2, Shenzhen International Innovation Valley, Dashi 1st Road, Xili Street, Xili Community, Nanshan District, Shenzhen 518052, P. R. China Mail: [email protected] · Web: www.tuv.com Lin Lin Hardy Suo Prüfbericht - Produkte Test Report - Products Prüfbericht-Nr.: CN230KWE 001 Test report no.: Seite 2 von 13 Page 2 of 13 Anmerkungen Remarks 1 Alle eingesetzten Prüfmittel waren zum angegebenen Prüfzeitraum gemäß eines festgelegten Kalibrierungsprogramms unseres Prüfhauses kalibriert. Sie entsprechen den in den Prüfprogrammen hinterlegten Anforderungen. Die Rückverfolgbarkeit der eingesetzten Prüfmittel ist durch die Einhaltung der Regelungen unseres Managementsystems gegeben. Detaillierte Informationen bezüglich Prüfkonditionen, Prüfequipment und Messunsicherheiten sind im Prüflabor vorhanden und können auf Wunsch bereitgestellt werden. The equipment used during the specified testing period was calibrated according to our test laboratory calibration program. The equipment fulfils the requirements included in the relevant standards. The traceability of the test equipment used is ensured by compliance with the regulations of our management system. Detailed information regarding test conditions, equipment and measurement uncertainty is available in the test laboratory and could be provided on request. 2 Wie vertraglich vereinbart, wurde dieses Dokument nur digital unterzeichnet. Der TÜV Rheinland hat nicht überprüft, welche rechtlichen oder sonstigen diesbezüglichen Anforderungen für dieses Dokument gelten. Diese Überprüfung liegt in der Verantwortung des Benutzers dieses Dokuments. Auf Verlangen des Kunden kann der TÜV Rheinland die Gültigkeit der digitalen Signatur durch ein gesondertes Dokument bestätigen. Diese Anfrage ist an unseren Vertrieb zu richten. Eine Umweltgebühr für einen solchen zusätzlichen Service wird erhoben. As contractually agreed, this document has been signed digitally only. TUV Rheinland has not verified and unable to verify which legal or other pertaining requirements are applicable for this document. Such verification is within the responsibility of the user of this document. Upon request by its client, TUV Rheinland can confirm the validity of the digital signature by a separate document. Such request shall be addressed to our Sales department. An environmental fee for such additional service will be charged. 3 Prüfklausel mit der Note * wurden an qualifizierte Unterauftragnehmer vergeben und sind unter der jeweiligen Prüfklausel des Berichts beschrieben. Abweichungen von Prüfspezifikation(en) oder Kundenanforderungen sind in der jeweiligen Prüfklausel im Bericht aufgeführt. Test clauses with remark of * are subcontracted to qualified subcontractors and descripted under the respective test clause in the report. Deviations of testing specification(s) or customer requirements are listed in specific test clause in the report. 4 Die Entscheidungsregel für Konformitätserklärungen basierend auf numerischen Messergebnisen in diesem Prüfbericht basiert auf der "Null-Grenzwert-Regel" und der "Einfachen Akzeptanz" gemäß ILAC G8:2019 und IEC Guide 115:2021, es sei denn, in der auf Seite 1 dieses Berichts genannten angewandten Norm ist etwas anderes festgelegt oder vom Kunden gewünscht. Dies bedeutet, dass die Messunsicherheit nicht berücksichtigt wird und daher auch nicht im Prüfbericht angegeben wird. Zu weiteren Informationen bezueglich des Risikos durch diese Entscheidungsregel siehe ILAC G8:2019. The decision rule for statements of conformity, based on numerical measurement results, in this test report is based on the “Zero Guard Band Rule” and “Simple Acceptance” in accordance with ILAC G8:2019 and IEC Guide 115:2021, unless otherwise specified in the applied standard mentioned on Page 1 of this report or requested by the cu…

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Prüfbericht - Produkte Test Report - Products Appendix A CN230KWE 001 Page 1 of 15 Appendix A: Test Results of FCC 15B APPENDIX A: TEST RESULTS OF FCC 15B ........................................................................................................................ 1 APPENDIX A.1: TEST RESULTS OF CONDUCTED EMISSION ON AC MAINS........................................................................................ 2 Charging by PC USB Port ............................................................................................................................................... 2 APPENDIX A.2: TEST RESULTS OF RADIATED EMISSION, BELOW 1GHZ .......................................................................................... 4 Aux In ............................................................................................................................................................................ 4 Bluetooth mode ............................................................................................................................................................ 6 Charging by PC USB Port ............................................................................................................................................... 8 APPENDIX A.3: TEST RESULTS OF RADIATED EMISSION, ABOVE 1GHZ ......................................................................................... 10 Aux In .......................................................................................................................................................................... 10 Bluetooth mode .......................................................................................................................................................... 12 Charging by PC USB Port ............................................................................................................................................. 14 Prüfbericht - Produkte Test Report - Products Appendix A CN230KWE 001 Page 2 of 15 Appendix A.1: Test Results of Conducted Emission on AC Mains Charging by PC USB Port EUT Information EUT Name: DTR STITCH LED KIDS HEADPHONE Order Number: 168451365 Model: DTRHPSTRDPRM Test Mode: Charging by PC USB Port Test Voltage: AC 120V/60Hz Test Standard: FCC Part 15B Test By:/Review By: Steve Lan/ Gary Chen Tem./Hum./Pressure: 25.0°C/51.2%/101kPa Remark: SR2 Level in dB 礦 Critical_Freqs Frequency (MHz) MaxPeak (dBμV) Average (dBμV) Limit (dBμV) Margin (dB) Line Corr. (dB) 0.150000 56.47 --- 66.00 9.53 L1 9.9 0.165500 --- 37.94 55.36 17.42 L1 9.9 0.178000 51.49 --- 64.58 13.09 L1 9.9 0.182000 --- 31.66 54.39 22.73 L1 9.9 0.206000 --- 31.01 53.37 22.35 L1 9.9 0.206000 47.51 --- 63.37 15.86 L1 9.9 0.442000 --- 27.20 47.02 19.83 L1 9.9 0.442000 39.60 --- 57.02 17.43 L1 9.9 3.474000 39.92 --- 56.00 16.08 L1 10.2 3.482000 --- 27.31 46.00 18.69 L1 10.2 5.110000 --- 28.77 50.00 21.23 L1 10.3 5.154000 41.29 --- 60.00 18.71 L1 10.3 Final_Result Frequency (MHz) QuasiPeak (dBμV) Average (dBμV) Limit (dBμV) Margin (dB) Meas. Time (ms) Bandwidth (kHz) Line Corr. (dB) 0.150000 51.42 --- 66.00 14.58 1000.0 9.000 L1 9.9 0.165500 --- 27.90 55.18 27.28 1000.0 9.000 L1 9.9 Prüfbericht - Produkte Test Report - Products Appendix A CN230KWE 001 Page 3 of 15 EUT Information EUT Name: DTR STITCH LED KIDS HEADPHONE Order Number: 168451365 Model: DTRHPSTRDPRM Test Mode: Charging by PC USB Port Test Voltage: AC 120V/60Hz Test Standard: FCC Part 15B Test By:/Review By: Steve Lan/ Gary Chen Tem./Hum./Pressure: 25.0°C/51.2%/101kPa Remark: SR2 Level in dB 礦 Critical_Freqs Frequency (MHz) MaxPeak (dBμV) Average (dBμV) Limit (dBμV) Margin (dB) Line Corr. (dB) 0.153500 51.74 --- 65.57 13.83 N 9.8 0.154000 --- 32.06 55.78 23.72 N 9.8 0.197500 --- 32.88 53.69 20.81 N 9.8 0.202500 49.32 --- 63.69 14.37 N 9.8 0.222000 --- 25.17 52.74 27.57 N 9.8 0.226000 42.38 --- 62.60 20.21 N 9.8 0.450000 --- 27.28 46.88 19.60 N 9.8 0.450000 37.98 --- 56.88 18.89 N 9.8 1.190000 --- 25.98 46.00 20.02 N 9.8 1.190000 39.99 --- 56.00 16.01 N 9.8 5.222000 40.11 --- 60.00 19.89 N 9.9 5.274000 --- 28.91 50.00 21.09 N 9.9 Final_Result Frequency (MHz) QuasiPeak (dBμV) Average (dBμV) Limit (dBμV) Margin (dB) Meas. Time (ms) Bandwidth (kHz) Line Corr. (dB) 0.153500 49.43 --- 65.81 16.38 1000.0 9.000 N 9.8 0.154000 --- 29.47 55.78 26.31 1000.0 9.000 N 9.8 0.197500 --- 25.12 53.72 28.60 1000.0 9.000 N 9.8 0.202500 42.10 --- 63.51 21.41 1000.0 9.000 N 9.8 Prüfbericht - Produkte Test Report - Products Appendix A CN230KWE 001 Page 4 of 15 Appendix A.2: Test Results of Radiated Emission, Below 1GHz Aux In EUT Information EUT Name: DTR STITCH LED KIDS HEADPHONE Order Number: 168451365 Model: DTRHPSTRDPRM Test Mode: Aux In Test Voltage: Battery Test Standard: FCC Part 15B Test By:/Review By: Steve Lan/Gary Chen Tem./Hum./Pressure: 23.3°C/51.1%/101kPa Remark: 3m chamber Level in dB 礦 /m Critical_Freqs Frequency (MHz) MaxPeak (dBμV/m) Limit (dBμV/m) Margin (dB) Height (cm) Pol Azimuth (deg) Corr. (dB/m) 462.620000 25.94 46.00 20.06 100.0 H 0.0 25.9 713.171000 32.67 46.00 13.33 100.0 H 39.0 31.0 597.159000 30.73 46.00 15.27 100.0 H 172.0 29.1 49.691000 20.23 40.00 19.77 100.0 H 182.0 20.7 854.306000 34.88 46.00 11.12 100.0 H 235.0 33.2 165.218000 20.33 43.50 23.17 200.0 H 184.0 20.7 Prüfbericht - Produkte Test Report - Products Appendix A CN230KWE 001 Page 5 of 15 EUT Information EUT Name: DTR STITCH LED KIDS HEADPHONE Order Number: 168451365 Model: DTRHPSTRDPRM Test Mode: Aux In Test Voltage: Battery Test Standard: FCC Part 15B Test By:/Review By: Steve Lan/Gary Chen Tem./Hum./Pressure: 23.3°C/51.1%/101kPa Remark: 3m chamber Level in dB 礦 /m Critical_Freqs Frequency (MHz) MaxPeak (dBμV/m) Limit (dBμV/m) Margin (dB) Height (cm) Pol Azimuth (deg) Corr. (dB/m) 112.838000 28.01 43.50 15.49 100.0 V 244.0 17.7 124.187000 27.25 43.50 16.25 100.0 V 201.0 18.7 135.479000 33.92 43.50 9.58 100.0 V 225.0 19.9 203.145000 22.90 43.50 20.60 100.0 V 0.0 17.5 848.583000 34.…

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Prüfbericht - Produkte Test Report - Products Appendix B CN230KWE 001 Page 1 of 5 Appendix B: Photographs of the Test Set-Up APPENDIX B: PHOTOGRAPHS OF THE TEST SET-UP ....................................................................................................... 1 PHOTOGRAPH 1: SET-UP FOR CONDUCTED EMISSION ON AC MAINS ............................................................................................... 2 PHOTOGRAPH 2: SET-UP PHOTO FOR RADIATED EMISSION, BELOW 1GHZ ....................................................................................... 2 PHOTOGRAPH 3: SET-UP PHOTO FOR RADIATED EMISSION, ABOVE 1GHZ ........................................................................................ 4 Prüfbericht - Produkte Test Report - Products Appendix B CN230KWE 001 Page 2 of 5 Photograph 1: Set-up for Conducted Emission on AC Mains Photograph 2: Set-up photo for Radiated Emission, Below 1GHz Prüfbericht - Produkte Test Report - Products Appendix B CN230KWE 001 Page 3 of 5 Prüfbericht - Produkte Test Report - Products Appendix B CN230KWE 001 Page 4 of 5 Photograph 3: Set-up photo for Radiated Emission, Above 1GHz Prüfbericht - Produkte Test Report - Products Appendix B CN230KWE 001 Page 5 of 5