2A9BA-EN-A903ENHYPEN OFFICIAL LIGHT BAND

Rev 1/26/2023 ELCOMTEC CO.,LTD 231, Dongbu-daero, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, Republic of Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 08‐21‐2024 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2A9BA‐EN‐A903 ELCOMTEC 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. Sincerely, Contact Name: Gi Bum Kang Title: Developer Rev 1/26/2023 ELCOMTEC CO.,LTD 231, Dongbu-daero, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, Republic of Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 08‐21‐2024 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2A9BA‐EN‐A903 ELCOMTEC 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 a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment . Sincerely, Contact Name: Gi Bum Kang Title: Developer

Certification designating a U.S. Agent for service of process: As required by section 2.911(d)(7), the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. In either scenario, the designation of the U.S. agent for service of process should be provided as an attachment to the equipment authorization application. The applicant must provide a written certification, which must: i. Be signed by both the applicant and designated agent for service of process, if the agent is different from the applicant. ii. Acknowledge the applicant’s consent and the designated agent’s obligation to accept service of process. iii. Provide a physical U.S. address and email for the designated agent. iv. Acknowledge the applicant’s acceptance to 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. Unofficial information provided by FCC personnel on February 14, 2023, via the monthly call with the TCB Council: The Agent for Process of Service:  cannot be a TCB or affiliated with a TCB (e.g. could not be a person who works for a TCB or a company that owns or is owned by the TCB)  cannot be a [FCC recognised] Lab or affiliated with a test lab (e.g. could not be a person who works for a Lab or a company that owns or is owned by the Lab)  Agent can be Individual Entity or a Company Entity  Agent Entity must be located in US, US address/phone  Entity acting as Agent must have FRN (best practice, put FRN on Agent Letter)  Agent letter does not have to be FCC ID specific, can be general Agent for Grantee For devices being marketed or for which marketing has ceased for less than 1 year, if the Agent for Process of Service changes, then for every TC Number the TCB must request the FCC to put application into Audit Mode and Agent Letter needs to be updated (superseded). NOTE: The U.S. Agent for Service of Process should not be confused with the authorized agent used for signing the 731 form, other cover letters within the application, and/or the agent who may interface with the TCB. ELCOMTEC CO.,LTD 231, Dongbu-daero, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, Republic of Korea U.S. Agent Designation for Service of Process ATTENTION: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA REGARDING: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: Approve-IT, Inc. Contact Name: Nathan Grinager Street Address: 8011 34 th A ve So uth, Suite 342 City/Province/Zip: Bloomington, MN 55425 Telephone No: 651-247-1678 Emai l: [email protected] FRN #: 0027533835 This l etter is to confirm that w e (“the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S . Agent for Serv ice of Pro cess as require d by sec tion 4 7 CFR 2.911(d)(7) on behalf of t he Applicant no ted below. U.S. Agent Signature: Date: August 23, 2024 Signed by (Printed Name/Title): Nathan Grin ager / Co-President *This letter is valid indefinitely for all applications submitted within the period of 08/23/2024 - 08/22/2025 The Applicant confirms its explicit consent and acknowledges that they must maintain an agent for no less than one year after terminating 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 Designated U.S. Agent information above changes. Applicant Company name: ELCOMTEC CO.,LTD Grantee FRN: 0033075227 FCC ID: 2A9BA-EN-A903 Contact Name: Gi Bum Kang Street Address: 231, Dongbu-daero, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, Republic of Korea City/Province/Zip: - Telephone No: +82-31-372-6740 Email: [email protected] Applicant Signature: Date: 08/16/2024 Signed by (Printed Name/Title): Gi Bum Kang / Developer

ELCOMTEC CO.,LTD 231, Dongbu-daero, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, Republic of Korea Date: 08/21/2024 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Request of Confidentiality FCC ID: 2A9BA-EN-A903 To Whom It may Concern: Pursuant to Sections 0.457 and 0.459 of the Commission`s Rules(CFR 47), and Section 552 (b) (4) of the Freedom of Information Act, ELCOMTEC 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 ELCOMTEC CO.,LTD temporary confidentiality of commercially sensitive information prior to product release. The requested permanent and Short-Term Confidential exhibits are listed as follows: PERMANENT & SHORT-TERM CONFIDENTIAL LIST Exhibit Description PERMANENT 1 Block Diagram 2 Schematics 3 Part Lists 4 Operation Description 5 NA SHORT-TERM 6 Internal Photos 7 External Photos 8 Test-Setup Photos 9 User Manual The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be public before the date of the Grant for this application. Sincerely, Contact Name: Gi Bum Kang Title: Developer

ELCOMTEC CO.,LTD 231, Dongbu-daero, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, Republic of Korea Date: 08/16/2024 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Letter of Authorization We, the undersigned, hereby authorize Geunki Son of Dt&C Co., Ltd. to act on our behalf in all manners relating to application for equipment authorization for FCC ID: 2A9BA-EN-A903 including signing of all documents relating to these matters. Any and all acts carried out by Geunki Son of Dt&C Co., Ltd. on our behalf shall have the same affect as acts of our own. This authorization is valid until further written notice from ELCOMTEC CO.,LTD. “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).” Sincerely, Contact Name: Gi Bum Kang Title: Developer

▶ ENHYPEN LIGHT BAND Label PRODUCT : ENHYPEN OFFICIAL LIGHT BANDMODEL : ENHNO24JOA903NN0 / BRNAD : HYBEMANUFACTURER : Elcomtec Co., Ltd.ENB-80:DE:CC:00:00:00KC : R-R-1EL-EN-A903 FCC ID : 2A9BA-EN-A903 JPMIC : 020-240257 IC : 30000-ENA903 CMIIT ID : 24J999KKA903 020-240257 10.15mm 38mm ● Label Location ● Label Size

FCC ID: RF feature Mode Test separation distance (mm) ANT Gain (dBi) Max. power with tune-up tolerance (dBm) Note1 Max. power with tune-up tolerance (mW) Power thresholds SAR test exclusion thresholds BLE GFSK(1Mbps) 2 402.00 ~ 2 480.00 5.0 1.53 -12.50 0.056 2 0.02 3.00 Zigbee O-QPSK (250 kbps ) 2 480.00 ~ 2 480.00 5.0 -0.86 -12.50 0.056 2 0.02 3.00 Note1. Conclusion : SAR evaluation for general popul ation exposure conditions by me asurement or numerical simulation is not required KDB 447498 D01 clause 4.3.1 Step 1) SAR test exclusion thresho lds for 100MHz to 6GHz at test separation distances ≤ 50 mm [ ( max. power of channel, inclu ding tune-up tolerance, mW ) / ( min. test separation distance, mm ) ] · [ √f(GHz) ] ≤ 3.0 for 1g SAR and ≤ 7.5 for 10g extremity SAR Sample Calculation = [ ( 0.0562mW / 5mm ) ] X [ √2.48GHz ] = 0.02Note. The calculation result was rounded to two decimal place f or comparison. 2A9BA-EN-A903 Please refet to the operation description for Max Tune-up power . Transmitting Frequency(MHz) Standalone SAR test exclusion considerations

FCC ID: 2A9BA-EN-A903 Report No.: DRTFCC2408-0094 IC: 30000-ENA903 This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-238(06)210316 Pages: 2 / 32 Test Report Version Test Report No. Date Description Revised by Reviewed by DRTFCC2408-0094 Aug, 19. 2024 Initial issue SeungMin Gil JaeJin Lee FCC ID: 2A9BA-EN-A903 Report No.: DRTFCC2408-0094 IC: 30000-ENA903 This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-238(06)210316 Pages: 3 / 32 Table of Contents 1. General Information .................................................................................... 4 1.1. Description of EUT .......................................................................................................... 4 1.2. Declaration by the applicant / manufacturer ................................................................ 4 1.3. Testing Laboratory .......................................................................................................... 5 1.4. Testing Environment ....................................................................................................... 5 1.5. Measurement Uncertainty............................................................................................... 5 1.6. Test Equipment List ........................................................................................................ 6 2. Test Methodology ........................................................................................ 7 2.1. EUT Configuration ........................................................................................................... 7 2.2. EUT Exercise .................................................................................................................... 7 2.3. General Test Procedures ................................................................................................ 7 2.4. Instrument Calibration .................................................................................................... 7 2.5. Description of Test Modes.............................................................................................. 8 3. Antenna Requirements ............................................................................... 8 4. Summary of Test Results ........................................................................... 9 5. Test Result ................................................................................................. 10 5.1. Maximum Peak Conducted Output Power .................................................................. 10 5.1.1. Test Setup .................................................................................................................. 10 5.1.2. Test Procedures ........................................................................................................ 10 5.1.3. Test Results ............................................................................................................... 10 5.2. 6 dB Bandwidth ............................................................................................................. 12 5.2.1. Test Setup .................................................................................................................. 12 5.2.2. Test Procedures ........................................................................................................ 12 5.2.3. Test Results ............................................................................................................... 12 5.3. Power Spectral Density ................................................................................................. 14 5.3.1. Test Setup .................................................................................................................. 14 5.3.2. Test Procedures ........................................................................................................ 14 5.3.3. Test Results ............................................................................................................... 14 5.4. Unwanted Emissions (Conducted) .............................................................................. 16 5.4.1. Test Setup .................................................................................................................. 16 5.4.2. Test Procedures ........................................................................................................ 16 5.4.3. Test Results ............................................................................................................... 17 5.5. Unwanted Emissions (Radiated) .................................................................................. 20 5.5.1. Test Setup .................................................................................................................. 22 5.5.2. Test Procedures ........................................................................................................ 22 5.5.3. Test Results ............................................................................................................... 23 5.6. AC Power-Line Conducted Emissions ........................................................................ 24 5.6.1. Test Setup .................................................................................................................. 24 5.6.2. Test Procedures ........................................................................................................ 24 5.6.3. Test Results ............................................................................................................... 24 5.7. Occupied Bandwidth ..................................................................................................... 27 5.7.1. Test Setup .................................................................................................................. 27 5.7.2. Test Procedures ..............…

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FCC ID: 2A9BA-EN-A903 Report No.: DRTFCC2408-0093 IC: 30000-ENA903 This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-238(06)210316 Pages: 2 / 42 Test Report Version Test Report No. Date Description Revised by Reviewed by DRTFCC2408-0093 Aug, 19. 2024 Initial issue SeungMin Gil JaeJin Lee FCC ID: 2A9BA-EN-A903 Report No.: DRTFCC2408-0093 IC: 30000-ENA903 This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-238(06)210316 Pages: 3 / 42 Table of Contents 1. General Information .................................................................................... 4 1.1. Description of EUT .......................................................................................................... 4 1.2. Declaration by the applicant / manufacturer ................................................................ 4 1.3. Testing Laboratory .......................................................................................................... 5 1.4. Testing Environment ....................................................................................................... 5 1.5. Measurement Uncertainty............................................................................................... 5 1.6. Test Equipment List ........................................................................................................ 6 2. Test Methodology ........................................................................................ 7 2.1. EUT Configuration ........................................................................................................... 7 2.2. EUT Exercise .................................................................................................................... 7 2.3. General Test Procedures ................................................................................................ 7 2.4. Instrument Calibration .................................................................................................... 7 2.5. Description of Test Modes.............................................................................................. 8 3. Antenna Requirements ............................................................................... 8 4. Summary of Test Results ........................................................................... 9 5. Test Result ................................................................................................. 10 5.1. Maximum Peak Conducted Output Power .................................................................. 10 5.1.1. Test Setup .................................................................................................................. 10 5.1.2. Test Procedures ........................................................................................................ 10 5.1.3. Test Results ............................................................................................................... 10 5.2. 6 dB Bandwidth ............................................................................................................. 13 5.2.1. Test Setup .................................................................................................................. 13 5.2.2. Test Procedures ........................................................................................................ 13 5.2.3. Test Results ............................................................................................................... 13 5.3. Power Spectral Density ................................................................................................. 16 5.3.1. Test Setup .................................................................................................................. 16 5.3.2. Test Procedures ........................................................................................................ 16 5.3.3. Test Results ............................................................................................................... 16 5.4. Unwanted Emissions (Conducted) .............................................................................. 19 5.4.1. Test Setup .................................................................................................................. 19 5.4.2. Test Procedures ........................................................................................................ 19 5.4.3. Test Results ............................................................................................................... 20 5.5. Unwanted Emissions (Radiated) .................................................................................. 28 5.5.1. Test Setup .................................................................................................................. 30 5.5.2. Test Procedures ........................................................................................................ 30 5.5.3. Test Results ............................................................................................................... 31 5.6. AC Power-Line Conducted Emissions ........................................................................ 32 5.6.1. Test Setup .................................................................................................................. 32 5.6.2. Test Procedures ........................................................................................................ 32 5.6.3. Test Results ............................................................................................................... 32 5.7. Occupied Bandwidth ..................................................................................................... 35 5.7.1. Test Setup .................................................................................................................. 35 5.7.2. Test Procedures ..............…

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Antenna Report Ver DV (2024.07.02) 1/11 Page APPROVAL SHEET MODEL : EN H Y P E N B A N D ANTENNA Review Consent Approval 임현묵 임근홍 서재운 H.M LIM G.H LIM J.W SEO 24.07.02 24.07.02 24.07.02 Antenna Report Ver DV (2024.07.02) 2/11 Page - Table of contents - 1. Revision History 2. Product Information 2.1 General Features 2.2 Electrical Specifications 3. Pattern Specifications 4. Matching Network 5. Electrical Characteristics 5.1 VSWR 5.2 Smith Chart 5.3 3D-PLOT 5.4 2D-Gain 6. Passive Measurement 7. Measurement Process Antenna Report Ver DV (2024.07.02) 3/11 Page 1. Revision History Ver. Contents Data DV ENHYPEN BAND 24.07.02 Antenna Report Ver DV (2024.07.02) 4/11 Page 2. Product Information 2.1 General Features PART NEMBER ENHYPEN BAND ANT ANTENNA TYPE PCB PATTERN ANTENNA APPLICATIONS Bluetooth 2.2 Electrical Specifications Frequency Range (Tx) 2400MHz~2480MHz Frequency Range (Rx) 2400MHz~2480MHz IMPEDANCE 50Ω POLARIZATION Linear Antenna Report Ver DV (2024.07.02) 5/11 Page 3. Pattern Specifications 4. Matching Network Antenna Report Ver DV (2024.07.02) 6/11 Page 5. Electrical Characterristics 5.1 VSWR 5.2 SMITH CHART Antenna Report Ver DV (2024.07.02) 7/11 Page 5.3 3D-PLOTs 5.4 2D-Gain Antenna Report Ver DV (2024.07.02) 8/11 Page Antenna Report Ver. DV (2024.07.02) 9/11 Page 6. Passive Measurement Antenna Report Ver. DV (2024.07.02) 10/11 Page 7. Measurement Process 7.1 SWR/Return loss Set Condition Network Analyzer Protek A338 Cable RF cable (300 mm) Test condition Antenna Report Ver. DV (2024.07.02) 11/11 Page 7.2 Gain Antenna gain is measured in the anechoic chamber of this company. Anechoic Chamber for Antenna Gain Measurement 7.3 Gain Test block diagram