2A2KIWIRTWS4BLKPRMTWS earbuds

You Tec Ltd. Attestation Statements Not Covered Entity Applicant To: Federal Communications Commission Date: 2026-04-29 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(ii) filing FCC ID: 2A2KIWIRTWS4BLKPRM 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: 2026-04-29 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) filing FCC ID: 2A2KIWIRTWS4BLKPRM 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: 2026-04-29 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, HA4 0EJ 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: 2026-04-29 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. (Company Name)

Request for Confidentiality Letter MS-0044715 Page 1 of 1 Revision 0 You Tec Ltd. Date: 2026-04-29 Subject: Confidentiality Request for FCC ID: 2A2KIWIRTWS4BLKPRM 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)

You Tec Ltd Model/Item Confirmation Letter We You Tec Limited declare that our product TWS earbuds and models 24177 07, 24177 03, 24177 06, 24177 01, 083669-991155040-0505, 083669-991155040-0804, 083669-991155040- 0305, 083669-991155040-0002 are identical on circuitry design, PCB layout, electrical components used, internal wiring and functions, only different on the model’s name for marketing purpose. Sincerely, ______________________ Signature Printed name: Cornel Nicolae Calin Title: Head of Production On behalf of You Tec Ltd.

Label and Label location Due to the product dimensions, the FCC ID cannot be achievable on the product, pursuant to FCC KDB 784748 D01, the FCC ID certification number are included in the user manual and packaging. Below is the screenshot from user manual and packaging. User manual label information: Packaging label information:

Prüfbericht - Produkte Test Report - Products Prüfbericht-Nr.: Test report no.: CN2616EE 003 Auftrags-Nr.: Order no.: 27225976 Seite 1 von 7 Page 1 of 7 Kunden-Referenz-Nr.: Client reference no.: N/A Auftragsdatum: Order date: 2026-03-26 Auftraggeber: Client: You Tec Ltd Santok House Unit L, Braintree Industrial Estate, Braintree Road, South Ruislip Middlesex, HA4 0EJ United Kingdom Prüfgegenstand: Test item: TWS earbuds Bezeichnung / Typ-Nr.: Identification / Type no.: 24177 07, 24177 03, 24177 06, 24177 01, 083669-991155040-0505, 083669- 991155040-0804, 083669-991155040-0305, 083669-991155040-0002 Auftrags-Inhalt: Order content: Test Report Prüfgrundlage: Test specification: CFR Title 47 FCC Part 2: Section 2.1093 Wareneingangsdatum: Date of sample receipt: 2026-03-26 Please refer to Photo Document Prüfmuster-Nr.: Test sample no: A004228083-010~014 A004250773-001~002 Prüfzeitraum: Testing period: 2026-04-14 - 2026-04-25 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: X Signed by: Lin Lin genehmigt von: authorized by: X Signed by: Hardy Suo Datum: Date: 2026-04-29 Ausstellungsdatum: Issue date: 2026-04-29 Stellung / Position: Sachverständige(r)/Expert Stellung / Position: Sachverständige(r)/Expert Sonstiges / Other: FCC ID: 2A2KIWIRTWS4BLKPRM 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, 1801-1804, Tower A Building 2, Shenzhen International Innovation Valley, Dashi 1st Road, Xili Street, Xili Community, Nanshan District, Shenzhen, 518000 Mail: [email protected] · Web: www.tuv.com V101023GCNSR Prüfbericht - Produkte Test Report - Products Prüfbericht-Nr.: CN2616EE 003 Test report no.: Seite 2 von 7 Page 2 of 7 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. Informationen zur Verifizierung der Authentizität unserer Dokumente erhalten Sie auf folgender Webseite: go.tuv.com/digital-signature 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. For information on verifying the authenticity of our documents, please visit the following website: go.tuv.com/digital-signature 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 115:2023, 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 Inform…

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2.4GHz 2012 Chip Antenna: AAN2012F5P2G45 _______________________________________________________________________________________________________ Application: WLAN, 802.11b/g, Bluetooth, etc... Features SMD, high reliability, ultra Impact, Omni-directional... Part number AAN 2012 F5P (1) (2) (3) (4) 2G45 (5) (1)Product Type Chip Antenna (2)Size Code 2.0x1.2mm (3)Type Code F5 (4)Packing Paper &Reel (5)Frequency 2.45GHz (6)Internal code Electrical Specification Working Frequency Range 2400 ~2484 MHz Peak Gain 1.56 dBi (Typ.) Impedance 50 Ohm Return loss 10 dB ( Min) Polarization Linear Azimuth Beamwidth Omni-directional Operation Temperature(°C) -40 ~85°C The specification is defined on EVB. Dimension and Terminal Configuration 2.4GHz 2012 Chip Antenna: AAN2012F5P2G45 _______________________________________________________________________________________________________ Evaluation Board Reference PCB Dimension Antenna Layout Reference Unit :mm Unit :mm Electrical Characteristics Return Loss & Radiation Return Loss Frequency (MHz) S11 (dB) 2400 -10.78 2442 -24.81 2484 -10.24 Radiation -39 -29 -19 -9 1 11 21 31 41 0 1 Pwr0 dBm Ch1Start2 GHzStop3 GHz Trc2 Trc3 S22 S11 dB Mag dB Mag 10 dB / 10 dB / Ref 0 dB Ref 0 dB Invisible Cal int Offs S11 M 12.400000 GHz-10.776 dB M 22.442000 GHz-24.812 dB M 32.484000 GHz-10.243 dB M 1 M 2 M 3 7/10/2015, 6:11 AM 2.4GHz 2012 Chip Antenna: AAN2012F5P2G45 _______________________________________________________________________________________________________ Taping Specifications Reel and Taping Specification Reel Specification TYPE SIZE A ψB ψC ψD W ψM 2012 7” 5K/Reel 2.0±0.5 13.5±1.0 21±1.0 60±1.0 11.5±2.0 178±2.0 Tapping Specification Packaging Type A B W E F G H T ψD P Paper Type 20121.90±0.20 3.50±0.20 8.0±0.20 1.75±0.10 3.5±0.05 4.0±0.10 2.0±0.05 0.75±0.10 +0.10 1.50 -0 4.0±0.1 2.4GHz 2012 Chip Antenna: AAN2012F5P2G45 _______________________________________________________________________________________________________ Reliability Table Test ItemProcedure Requirements Ceramic Type Remark (Reference) Electrical Characterization Fulfill the electrical specification User Spec. Thermal Shock 1. Preconditioning: 50 ± 10°C / 1 hr , then keep for 24 ± 1 hrs at room temp. 2. Initial measure: Spec: refer Initial spec. 3. Rapid change of temperature test: -30°C to +85°C; 100 cycles; 15 minutes at Lower category temperature; 15 minutes at Upper category temperature. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 107 Temperature Cycling 1. Initial measure: Spec: refer Initial spec. 2. 100 Cycles (-30°C to +85°C), Soak Mode=1 (2 Cycle/hours). 3. Measurement at 24 ± 2Hours after test condition. No Visible Damage. Fulfill the electrical specification. JESD22 JA104 High Temperature Exposure 1. Initial measure: Spec: refer Initial spec. 2. Unpowered; 500hours @ T=+85°C. 3. Measurement at 24 ± 2 hours after test. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 108 Low Temperature Storage 1. Initial measure: Spec: refer Initial spec. 2. Unpowered: 500hours @ T= -30°C. 3. Measurement at 24 ± 2 hours after test. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 108 Solderability (SMD Bottom Side) Dipping method: a. Temperature: 235 ± 5°C b. Dipping time: 3 ± 0.5s The solder should cover over 95% of the critical area of bottom side. IEC 60384-21/22 4.10 Soldering Heat Resistance (RSH) Preheating temperature: 150 ± 10°C. Preheating time: 1~2 min. Solder temperature: 260 ± 5°C. Dipping time: 5 ± 0.5s No Visible Damage.IEC 60384-21/22 4.10 Vibration5g's for 20 min., 12 cycles each of 3 orientations Note: Use 8"X5" PCB .031" thick 7 secure points on, one long side and 2 secure points at corners of opposite sides. Parts mounted within 2" from any secure point. Test from 10-2000 Hz. No Visible Damage.MIL-STD-202 Method 204 Mechanical Shock Three shocks in each direction shall be applied along the three mutually perpendicular axes of the test specimen (18 shocks) Peak value: 1,500g’s Duration: 0.5ms Velocity change: 15.4 ft/s Waveform: Half-sine No Visible Damage.MIL-STD-202 Method 213 Humidity Bias 1. Humidity: 85% R.H., Temperature: 85 ± 2 °C. 2. Time: 500 ± 24 hours. 3. Measurement at 24 ± 2hrs after test condition. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 Method 106 2.4GHz 2012 Chip Antenna: AAN2012F5P2G45 _______________________________________________________________________________________________________ Revision History Revision Date Content 1 2015/8/20 New issue 2 2017/4/20 Update detail dimension on antenna layout 3 2018/3/1 Part number and coding rule updated Board Flex (SMD) 1. Mounting method: IR-Reflow. PCB Size (L:100 × W:40 × T:1.6mm) 2. Apply the load in direction of the arrow until bending reaches 2 mm. No Visible Damage.AEC-Q200 005 AdhesionForce of 1.8Kg for 60 seconds.No Visible Damage Magnification of 20X or greater may be employed for inspection of the mechanical integrity of the device body terminals and body/terminal junction. AEC-Q200 006 Physical Dimension Any applicable method using x10 magnification, micrometers, calipers, gauges, contour projectors, or other measuring equipment, capable of determining the actual specimen dimensions. In accordance with specification. JESD22 JB100

Prüfbericht - Produkte Test Report - Products Prüfbericht-Nr.: Test report no.: CN2616EE 002 Auftrags-Nr.: Order no.: 27225976 Seite 1 von 22 Page 1 of 22 Kunden-Referenz-Nr.: Client reference no.: N/A Auftragsdatum: Order date: 2026-03-26 Auftraggeber: Client: You Tec Ltd Santok House Unit L, Braintree Industrial Estate, Braintree Road, South Ruislip Middlesex, HA4 0EJ United Kingdom Prüfgegenstand: Test item: TWS earbuds Bezeichnung / Typ-Nr.: Identification / Type no.: 24177 07, 24177 03, 24177 06, 24177 01, 083669-991155040-0505, 083669- 991155040-0804, 083669-991155040-0305, 083669-991155040-0002 Auftrags-Inhalt: Order content: Test Report Prüfgrundlage: Test specification: CFR Title 47 FCC Part 15, Subpart C, Section 15.247 Wareneingangsdatum: Date of sample receipt: 2026-03-26 Please refer to Photo Document Prüfmuster-Nr.: Test sample no: A004228083-010~014 A004250773-001~002 Prüfzeitraum: Testing period: 2026-04-14 - 2026-04-25 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: X Signed by: Lin Lin genehmigt von: authorized by: X Signed by: Hardy Suo Datum: Date: 2026-04-29 Ausstellungsdatum: Issue date: 2026-04-29 Stellung / Position: Sachverständige(r)/Expert Stellung / Position: Sachverständige(r)/Expert Sonstiges / Other: FCC ID: 2A2KIWIRTWS4BLKPRM 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, 1801-1804, Tower A Building 2, Shenzhen International Innovation Valley, Dashi 1st Road, Xili Street, Xili Community, Nanshan District, Shenzhen, 518000 Mail: [email protected] · Web: www.tuv.com V101023GCNSR Prüfbericht - Produkte Test Report - Products Prüfbericht-Nr.: CN2616EE 002 Test report no.: Seite 2 von 22 Page 2 of 22 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. Informationen zur Verifizierung der Authentizität unserer Dokumente erhalten Sie auf folgender Webseite: go.tuv.com/digital-signature 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. For information on verifying the authenticity of our documents, please visit the following website: go.tuv.com/digital-signature 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 115:2023, 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…

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