A3LSMU600Bluetooth Headset

47 CFR §2.903 and §2.911 (d)(5) Attestation Date: Aug‐18‐2026 FCC ID: A3LSMU600 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA 1.Samsung Electronics 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. 2.Samsung Electronics 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 as an entity producing “covered” equipment and is not an affiliate or subsidiary of an entity identified on the Covered List. 3.Samsung Electronics Co., Ltd. ("the applicant") certifies that the device does not have cybersecurity and/or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, identified on the Covered List installed on the device, nor will it be installed by the applicant anytime after certification. S incerely yours, Name: Ms. Jenni Chun Job Title: Head of Regulatory & Environmental Affairs Company Name: Samsung Electronics Co., Ltd.

47 CFR §2.911 (d)(7) Agent Designation Attestation Date: July‐22‐2026 FCC ID:A3LSMU600 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Samsung Electronics Co., Ltd. (“the applicant”) as required by section 2.911(d)(7), designates the following agent, located in the United States, for purposes of acting as the applicant’s agent for service of process. The applicant acknowledges that they will maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission‐related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the agent information changes. U. S. Agent Information: Contact Person: Ms. Jenni Chun Company Name: Samsung Electronics Co., Ltd. FCC FRN: 0027908797 Company Address: 19 Chapin Rd., Building D, Pine Brook, NJ 07058 Email: [email protected] Sincerely yours, Name: Ms. Jenni Chun Job Title: Head of Regulatory & Environmental Affairs Company Name: Samsung Electronics Co., Ltd.

Date: July 22, 2026 Federal Communic ations Commission 7435 Oakland Mills Road Columbia MD 21046 c.c. UL Verification Services Certification Division 47173 Benicia Street Fremont, CA 94538, USA To whom it may concern: I, the undersigned, hereby authorize Ms. Chloe Lee/ General Manager of Eurofins KCTL Co.,Ltd. and hereafter referred to as Eurofins KCTL 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 Ms. Chloe Lee/ General Manager of Eurofins KCTL Co.,Ltd. on our behalf s hall 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 Eurofins KCTL 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)mak e claims regarding certification only in respect of the scope for which certification has been granted; d)do not us e 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)us e certification only to indicate the products are certified as being i n conformity with specified standards; g)ende avor 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 m edia such as documents, brochures or advertising, complies with t he requirements of the Certification Division; i)k eep a record of all complaints made known to the us relating to t he pr oduct’s compliance with requirements of the relevant standard and to make these records available to the Certification Division when requested; j)t ake appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance wit h t he requirements for certification; k)doc ument the actions taken. This authorization is valid until further written notice from the applicant. Sincerely Yours, Jenni Chun, General Manager Regulatory & Environmental Affairs Samsung Electronics America, Inc

CONFIDENTIALITY REQUEST Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 July 22, 2026 T O WHOM IT MAY CONCERN Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, Samsung Electronics Co., Ltd. requests confidentiality for the following products: FCC ID Number Product Title/Model A3LSMU600 Bluetooth Headset / SM-U600 T he following exhibits contain trade secrets and proprietary information that could be of benefit to our competitors regarding the design of our product. This material is not customarily available to the general public and we request that it be withheld from public inspection. We request that the following information submitted be held permanent confidential treatment. Permanent Confidential Request -. Schematics -. Blo ck Diagram -. Operational Description -. Parts list W e also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give temporary confidentiality of commercially sensitive information prior to product release. Short-Term Confidential Request -. External Photos -. Internal Photos -. Test set-up photo -. User Manual I f you have any questions, please feel free to contact me at the address shown below. Sincerely, Jenni Chun/ General manager

LabelInformation SM-U600 [Bottom view of chargingcase] *The device is too small to accommodate a label; therefore, the requ ired information is printed in a non-detachable form on the charging case, which is easily accessible to users, and detailed information is a lso provided in the user manual.

Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (23) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Appendix A. Calibration certificate Appendix A.1 Probe Calibration certificate(EX3DV4_3928) Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (24) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (25) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (26) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (27) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (28) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (29) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (30) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (31) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (32) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (33) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (34) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (35) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (36) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (37) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (38) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (39) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (40) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (41) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (42) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (43) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (44) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Appendix A.2 Dipole Calibration certificate (D2450V2_895) Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (45) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (46) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (47) of (58) KCTL-TIA002-004/6(220705) KP26-04232 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Pag…

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verify No.768158606372 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (2) of (58) KCTL-TIA002-004/6(220705) KP26-04232 REPORT REVISION HISTORY Date Revision Page No 2026-08-10 Originally issued - 2026-08-21 Updated normalized SAR value 15 Note: The Report No. KR26-SPF0032 is superseded by the report No. KR26-SPF0032-A. This report shall not be reproduced except in full, without the written approval of Eurofins KCTL Co.,Ltd. This document may be altered or revised by Eurofins KCTL Co.,Ltd. personnel only, and shall be noted in the revision section of the document. Any alteration of this document not carried out by Eurofins KCTL Co.,Ltd. will constitute fraud and shall nullify the document. This test report is a general report that does not use the KOLAS accreditation mark and is not related to KS Q ISO/IEC 17025 and KOLAS accreditation. General remarks for test reports Statement concerning the uncertainty of the measurement systems used for the tests (may be required by the product standard or client) Internal procedure used for type testing through which traceability of the measuring uncertainty has been established: Procedure number, issue date and title: Calculations leading to the reported values are on file with the testing laboratory that conducted the testing. Statement not required by the standard or client used for type testing 1. Identification when information is provided by the customer: Information marked " # " is provided by the customer. - Disclaimer: This information is provided by the customer and can affect the validity of results. Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (3) of (58) KCTL-TIA002-004/6(220705) KP26-04232 CONTENTS 1. General information .................................................................................................................................. 4 2. Device information .................................................................................................................................... 5 3. Specific Absorption Rate ........................................................................................................................ 7 4. SAR Measurement Procedures ........................................................................................................... 8 5. RF Exposure Limits .................................................................................................................................. 9 6. SAR General Measurement Procedures ...................................................................................... 10 7. RF Average Conducted Output Power........................................................................................... 11 8. System Verification ................................................................................................................................ 14 9. SAR Test Results ................................................................................................................................... 16 10. SAR Measurement Variability ............................................................................................................ 17 11. Measurement Uncertainty ................................................................................................................... 18 12. Test Equipment Information ............................................................................................................... 19 13. Test System Verification Results ................................................................................................... 20 14. Test Results ............................................................................................................................................. 21 Appendixes List ................................................................................................................................................. 22 Appendix A. Calibration certificate ........................................................................................................... 23 Appendix B. SAR Tissue Specification ...................................................................................................... 50 Appendix C. #Antenna Location & Distance ........................................................................................... 51 Appendix D. EUT Photo .................................................................................................................................. 52 Appendix E. Test Setup Photo ...................................................................................................................... 56 End of test report ............................................................................................................................................... 58 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SPF0032-A Page (4) of (58) KCTL-TIA002-004/6(220705) KP26-04232 1. General information Client : Samsung Electronics Co., Ltd. Address : 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Rep. of Korea Manufacturer : Samsung Electronics Co., Ltd. Address : 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Rep. of Korea Laboratory : Eurofins KCTL Co.,Ltd. Address : 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea Accreditations : FCC Site Designation No: KR0040, FCC Site Registration No: 687132 VCCI Registration No. : R-3327, G-198, C-3706, T-1849 CAB Identifier: KR0040, ISED Number: 8035A KOLAS No.: KT231 1.1 Report Overview This report details the results of testing carried out on the samples listed in section 2, the res…

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Antenna Specification Project : SM-U600 P/N : ANT FPC Vendor : Huizhou Speed Wireless Technology Co.,Ltd Antenna Description Antenna Type : Inverted-F Size : 14.54 x 8.8 x 0.415mm Radiation Pattern Test Antennas tested for Gain and Efficiency must be assembled into the enclosure and tested in the fully assembled and operating Galaxy Buds. The antenna is tested in free space in the anechoic chamber in the H, E1 and, E2 planes. The radiation patterns are measured at the center of transmit and receive bands. Chamber Information Figure 1: Geometry for Galaxy Budsfor Radiation patterns. Figure 2: Geometry of Anechoic Chamber for Radiation patterns. ✓Location : Samsung R&D Center R5 bld. ✓Size : 4m x 2.5 x 2.5m (L x W x H) ✓Frequency : 600 MHz -18GHz ✓TX Antenna : 2GHz –18GHz Dual Polarization ✓Quiet zone : 22cm @ 6GHz (Far-Field Length 2m) ✓2-axis DUT positioner-360°continuous rotation Z Y X Model Freq. [MHz] 2,400 MHz 2,420 MHz 2,440 MHz 2,460 MHz 2,480 MHz Galaxy Buds -9.37 dBi-8.59 dBi-8.97 dBi-9.42 dBi-9.14 dBi Antenna Peak Gain & Antenna Radiation Pattern (3D) -Test Dates : 2026. 06. 29 -Location : Samsung R&D Center R5 bld Frequency [MHz] Average gainPeak gain VerHorTotalVerHorTotal 12400-20.8-15.9-14.65-27.21-9.44-9.37 22420-19.7-14.9-13.65-16.72-9.32-8.59 32440-19.6-15-13.69-15.91-9.95-8.97 42460-20.2-15.5-14.26-17.1-10.24-9.42 52480-20.2-15.4-14.15-17.8-9.78-9.14 Table of calibrated equipment Names of commercial test software being used MTG Visual Wave-Mobile (Ver.2.1) PartModel NameSpecification TX Antenna QRH-006M-006G600MHz to 6GHz QRH-002G-018G2GHz to 18GHz Reference Antenna BBHA9120LFA680MHz to 6500MHzCalibration Frequency (680MHz to 6GHz) BBHA9120C2GHz to 18GHzCalibration Frequency (2GHz to 8.5GHz) Network AnalyzerAgilent 5071B300KHz to 8.5GHzCal. Due : 2027. 03. 06 Measurement SoftwareVWM21MTG Visual Wave-Mobile (Ver.2.1) By Test: MobiletechCalibration Lab co.,Ltd. JaecheonEom

verify No.292347307928 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SRF0136-A Page (2) of (42) KCTL-TIR001-003/7 (220705) KP26-04232 REPORT REVISION HISTORY Date Revision Page No 2026-08-10 Originally issued - 2026-08-19 Updated the Conducted Emissions 40-42 This report shall not be reproduced except in full, without the written approval of Eurofins KCTL Co.,Ltd. This document may be altered or revised by Eurofins KCTL Co.,Ltd. personnel only, and shall be noted in the revision section of the document. Any alteration of this document not carried out by Eurofins KCTL Co.,Ltd. will constitute fraud and shall nullify the document. This test report is a general report that does not use the KOLAS accreditation mark and is not related to KS Q ISO/IEC 17025 and KOLAS accreditation. Note. The report No. KR26-SRF0136 is superseded by the report No. KR26-SRF0136-A. General remarks for test reports Statement concerning the uncertainty of the measurement systems used for the tests (may be required by the product standard or client) Internal procedure used for type testing through which traceability of the measuring uncertainty has been established: Procedure number, issue date and title: Calculations leading to the reported values are on file with the testing laboratory that conducted the testing. Statement not required by the standard or client used for type testing Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SRF0136-A Page (3) of (42) KCTL-TIR001-003/7 (220705) KP26-04232 CONTENTS 1. General information ...................................................................................................... 4 2. Device information ........................................................................................................ 4 2.1. Frequency/channel operations ................................................................................ 5 2.2. Duty Cycle Factor ................................................................................................... 6 3. Antenna requirement .................................................................................................... 7 4. Summary of tests .......................................................................................................... 8 5. Measurement uncertainty ............................................................................................. 9 6. Measurement results explanation example ................................................................ 10 7. Test results ................................................................................................................. 11 7.1. Maximum peak output power ................................................................................ 11 7.2. Peak Power Spectral Density ............................................................................... 14 7.3. 6 dB Bandwidth(DTS Channel Bandwidth) ........................................................... 17 7.4. Spurious Emission, Band Edge and Restricted bands .......................................... 20 7.5. Conducted Spurious Emission .............................................................................. 37 7.6. AC Conducted emission ....................................................................................... 40 8. Measurement equipment ............................................................................................ 42 Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SRF0136-A Page (4) of (42) KCTL-TIR001-003/7 (220705) KP26-04232 1. General information Client : Samsung Electronics Co., Ltd. Address : 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Rep. of Korea Manufacturer : Samsung Electronics Co., Ltd. Address : 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Rep. of Korea Laboratory : Eurofins KCTL Co.,Ltd. Address : 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea Accreditations : FCC Site Designation No: KR0040, FCC Site Registration No: 687132 VCCI Registration No. : R-20080, G-20078, C-20059, T-20056 CAB Identifier: KR0040 ISED Number: 8035A KOLAS No.: KT231 2. Device information Equipment under test : Bluetooth Headset Model : SM-U600 Modulation technique : Bluetooth Low Energy : GFSK Number of channels : 40 ch Power source : DC 3.85 V Antenna specification : Inverted-F Antenna Antenna gain : -8.59 ㏈i Frequency range : 2 402 ㎒ ~ 2 480 ㎒ Software version : U600.001 Hardware version : REV1.0 Test device serial No. : R4AL600GBWZ Operation temperature : 0 °C ~ 35 °C Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SRF0136-A Page (5) of (42) KCTL-TIR001-003/7 (220705) KP26-04232 2.1. Frequency/channel operations This device contains the following capabilities: Bluetooth Low Energy Ch. Frequency (㎒) 37 2 402 . . . . 17 2 440 . . . . 39 2 480 Table 2.1-1. Bluetooth Low Energy (1M/2M) Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SRF0136-A Page (6) of (42) KCTL-TIR001-003/7 (220705) KP26-04232 2.2. Duty Cycle Factor Test mode Period (ms) On time (ms) Duty cycle Duty Cycle Factor (dB) (Linear) (%) 1M Bits/s, 37 Packet 0.627 0.404 0.644 3 64.43 1.91 1M Bits/s, 255 Packet 2.504 2.149 0.858 4 85.84 0.66 2M Bits/s, 37 Packet 0.628 0.220 0.350 2 35.02 4.56 2M Bits/s, 255 Packet 1.875 1.089 0.580 6 58.06 2.36 Notes: 1. Duty cycle (Linear) = Ton time / Period 2. DCF(Duty cycle factor) = 10log(1/duty cycle) 3. DCF is not compensated to average result if the du…

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Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SRF0136-A Page (35) of (42) KCTL-TIR001-003/7 (220705) KP26-04232 Horizontal/Vertical for 1 ㎓ ~ 3.5 ㎓ Horizontal/Vertical for 3.5 ㎓ ~ 18 ㎓ Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SRF0136-A Page (36) of (42) KCTL-TIR001-003/7 (220705) KP26-04232 Test results (Above 18 ㎓) – Worst case: 2 MBits/s(37 Bytes) 2 480 ㎒ Horizontal/Vertical for 18 ㎓ ~ 26.5 ㎓ Note: The Worst case was based on the lowest margin condition considering Harmonic and Spurious Emission Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SRF0136-A Page (37) of (42) KCTL-TIR001-003/7 (220705) KP26-04232 7.5. Conducted Spurious Emission Test setup EUT Attenuator Spectrum analyzer Limit According to §15.247(d), In any 100 ㎑ bandwidth outside the frequency band in which the spread spectrum or digitally modulated intentional radiator is operation, the radio frequency power that is produced by the intentional radiator shall be at least 20 ㏈ below that in the 100 ㎑ bandwidth within the band that contains the highest level of the desired power, based on either an RF conducted or a radiated measurement, provided the transmitter demonstrates compliance with the peak conducted power averaging over a time interval, as permitted under paragraph (b)(3) of this section, the attenuation specified in §15.209(a) is not required. In addition, radiated emission limits specified in §15.209(a) (see §15.205(c)). Limit : 20 dBc Test procedure ANSI C63.10 - Section 11.11.3 KDB 558074 D01 v05 - Section 8.5 Test settings Establish an emission level by using the following procedure: a) Set the center frequency and span to encompass frequency range to be measured. b) Set the RBW = 100 ㎑ c) Set the VBW ≥ [3ｘRBW] d) Detector = peak e) Sweep time = No faster than coupled (auto) time f) Trace mode = max hold g) Allow trace to fully stabilize. h) Use the peak marker function to determine the maximum amplitude level. Ensure that the amplitude of all unwanted emissions outside of the authorized frequency band (excluding restricted frequency bands) is attenuated by at least the minimum requirements specified in 11.11. Report the three highest emissions relative to the limit. Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SRF0136-A Page (38) of (42) KCTL-TIR001-003/7 (220705) KP26-04232 Test results BLE_1 MBit/s(37 Bytes) Conducted band-edge / Low ch. Conducted spurious / Low ch. Conducted band-edge / Mid ch. Conducted spurious / Mid ch. Blank Conducted band-edge / High ch. Conducted spurious / High ch. Eurofins KCTL Co.,Ltd. 65, Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16677, Korea TEL: 82-70-4904-0113 FAX: 82-505-299-8311 www.kctl.co.kr Report No.: KR26-SRF0136-A …

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