TX4-RE78Remote controller

Remote Solution Co., Ltd. 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: Remote Solution Co., Ltd. Address: 92, Chogokri, Nammyun, Kimchon City, Kyungbuk, 740-871, South Korea Product Name: Remote controller FCC ID: TX4-RE78 Model(s): RE78 2.911(d)(5)(i) Equipment Type We, Remote Solution Co., Ltd. (“the applicant”) certify that the equipment for which authorization is sought through certification is not: • Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules. • Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Name: Byung-Cheol, Kim Date: January 15, 2026 Title and Company name: Manager / Remote Solution Co., Ltd. NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Remote Solution Co., Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.3 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Remote Solution Co., Ltd. Address: 92, Chogokri, Nammyun, Kimchon City, Kyungbuk, 740-871, South Korea Product Name: Remote controller FCC ID: TX4-RE78 Model(s): RE78 2.911(d)(5)(ii) Applicant filing We, Remote Solution Co., Ltd. (“the applicant”) certify that, as of the date of the filing of the application, the applicant is is not identified NOTE 1 on the “Covered List” NOTE 2 , established pursuant to § 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: Byung-Cheol, Kim Date: January 15, 2026 Title and Company name: Manager / Remote Solution Co., Ltd. NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Remote Solution Co., Ltd. 2.911 (d)(7)USA Agent v1.3 Section 2.911(d)(7) USA Agent for Service of Process Company name: Remote Solution Co., Ltd. Address: 92, Chogokri, Nammyun, Kimchon City, Kyungbuk, 740-871, South Korea Product Name: Remote controller Grantee code: TX4 Model(s): RE78 2.911(d)(7) USA Designated Agent for Service of Process We, Remote Solution Co., Ltd. (“the applicant”) designate Remote Solution America NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent: We Acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledge our acceptance of our obligation to maintain an agent for 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. Agent obligation: We Acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address 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. Remote Solution Co., Ltd. 2.911 (d)(7)USA Agent v1.3 USA Agent Company name: Remote Solution America Address: 222 Bridge Plaza South Suite 310, Fort Lee, New Jersey, 07024, United States FCC Grantee Code: 2BADO FRN No.: 0033456450 Contact Name: John Ahn Telephone No: (949) 891-2095 Email: [email protected] Applicant Company name: Remote Solution Co., Ltd. Address: 92, Chogokri, Nammyun, Kimchon City, Kyungbuk, 740-871, South Korea FCC Grantee Code: TX4 FRN No.: 0014561690 Contact Name: Byung-Cheol Kim Telephone No: +82-54-420-4517 Email: [email protected] Signature: Title: Sr. Program Manager Signature: Title: Manager Date: January 15, 2026 Date: January 15, 2026 NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

Letter of Authorization Company: Remote Solution Co., Ltd. Address: 92, Chogokri, Nammyun, Kimchon City, Kyungbuk, 740-871, South Korea Product Name: Remote controller Model Number: RE78 FCC Identifier: TX4-RE78 We authorize MiCOM Labs Inc, 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the above named equipment. Any individual within MiCOM Labs is authorized to act on our behalf and take action on the application. We declare that MiCOM Labs Inc, 575 Boulder Court, Pleasanton, California 94566, USA, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Name: Byung-Cheol, Kim Date: January 15, 2026 Title: Manager Signature of applicant:

Remote Solution Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: January 15, 2026 Subject; Request for Confidentiality FCC ID: TX4-RE78 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Byung-Cheol, Kim Title: Manager

Page 1 of 1 IDENTIFICATION LABEL: PROPOSED LABEL The shall be permanently affixed in the rear side of the equipment

Page 1 of 6 Report No.: OT-261-RWD-011 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) EMF TEST REPORT Test Report No. : OT-261-RWD-011 Reception No. : 2512004146 Applicant : Remote Solution Co., Ltd. Address : 92, Chogokri, Nammyun, Kimchon City, Kyungbuk, 740-871, South Korea Manufacturer : Remote Solution Co., Ltd. Address : 326-14, Apo-daero, Nam-myeon, Gimcheon-si, Gyeongsangbuk-do, 39662, South Korea Type of Equipment : Remote controller FCC ID. : TX4-RE78 Model Name : RE78 Multiple Model Name : N/A Serial number : N/A Total page of Report : 6 pages (including this page) Date of Incoming : December 15, 2025 Date of issue : January 13, 2026 SUMMARY The equipment complies with the regulation; FCC 47 CFR Part 1, 1.1310 This test report only contains the result of a single test of the sample supplied for the examination. It is not a generally valid assessment of the features of the respective products of the mass-production. This test report is not associated with the accreditation granted by the Korean Laboratory Accreditation Scheme (KOLAS). Tested by Ye-Bhin, Park / Engineer ONETECH Corp. Reviewed by Tae-Ho, Kim / Chief Engineer ONETECH Corp. Approved by Jae-Ho, Lee / Director ONETECH Corp. Page 2 of 6 Report No.: OT-261-RWD-011 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) CONTENTS Page 1. VERIFICATION OF COMPLIANCE ............................................................................................................................. 4 2. GENERAL INFORMATION ............................................................................................................................................ 5 2.1 PRODUCT DESCRIPTION ................................................................................................................................................. 5 2.2 MAXIMUM PEAK OUTPUT POWER ................................................................................................................................ 5 2.3 ALTERNATIVE TYPE(S)/MODEL(S); ALSO COVERED BY THIS TEST REPORT. ................................................................ 5 3. EUT MODIFICATIONS .................................................................................................................................................... 5 4. RF EXPOSURE EVALUATION ...................................................................................................................................... 6 4.1 RF EXPOSURE CALCULATION ....................................................................................................................................... 6 4.2 EUT DESCRIPTION ......................................................................................................................................................... 6 4.3 TEST RESULT ................................................................................................................................................................. 6 4.3.1 Test data for Bluetooth LE ..................................................................................................................................... 6 Page 3 of 6 Report No.: OT-261-RWD-011 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) Revision History Rev. No. Issue Report No. Issued Date Revisions Section Affected 0 OT-261-RWD-011 January 13, 2026 Initial Release All Page 4 of 6 Report No.: OT-261-RWD-011 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) 1. VERIFICATION OF COMPLIANCE Applicant : Remote Solution Co., Ltd. Address : 92, Chogokri, Nammyun, Kimchon City, Kyungbuk, 740-871, South Korea Contact Person : Jun Seob, Kim / Manager Telephone No. : +82-54-420-4517 FCC ID : TX4-RE78 Model Name : RE78 Brand Name : - Serial Number : N/A Date : January 13, 2026 EQUIPMENT CLASS DTS – DIGITAL TRNSMISSION SYSTEM E.U.T. DESCRIPTION Remote controller THIS REPORT CONCERNS Original Grant MEASUREMENT PROCEDURES KDB 447498 D01 General RF Exposure Guidance v06 TYPE OF EQUIPMENT TESTED Pre-Production KIND OF EQUIPMENT AUTHORIZATION REQUESTED Certification Modifications on the Equipment to Achieve Compliance None -. The above equipment was tested by ONETECH Corp. for compliance with the requirement set forth in the FCC Rules and Regulations. This said equipment in the configuration described in this report, shows the maximum emission levels emanating from equipment are within the compliance requirements. Page 5 of 6 Report No.: OT-261-RWD-011 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) 2. GENERAL INFORMATION 2.1 Product Description The Remote Solution Co., Ltd., Model RE78 (referred to as the EUT in this report) is a Remote controller. The product specification described herein was obtained from product data sheet or user’s manual. DEVICE TYPE Remote controller Temperature Range 0 °C ~ +50 °C OPERATING FREQUENCY 2 402 MHz ~ 2 480 MHz MODULATION TYPE GFSK RF OUTPUT POWER 4.29 dBm ANTENNA TYPE PCB Antenna ANTENNA GAIN 3.77 dBi List of each Osc. or crystal Freq.(Freq. >= 1 MHz) 32 MHz RATED SUPPLY VOLTAGE DC 3.0 V 2.2 Maximum Peak Output P…

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Appendix Data 1. MINIMUM 6 DB BANDWIDTH 2. MAXIMUM PEAK OUTPUT POWER 3. 100 KHZ BANDWIDTH OUTSIDE THE FREQUENCY BAND 4. RADIATED EMISSION 5. PEAK POWER SPECTRAL DENSITY Test ItemNo.ModeFrquency Duty Cycle1 LE1M 2440 Verdict Pass Test Parameters Antenna Test BandBluetooth_LE1M Ant1 1 Duty Cycle Test ItemNo.ModeFrquency 1 LE1M 2402 2 LE1M 2440 3 LE1M 2480 Test Parameters Antenna Test BandBluetooth_LE1M Ant1 x dB Bandwidth Verdict Pass Pass Pass 1 2 x dB Bandwidth x dB Bandwidth 3 x dB Bandwidth Test ItemNo.ModeFrquency 1 LE1M 2402 2 LE1M 2440 3 LE1M 2480 Test Parameters Antenna Test BandBluetooth_LE1M Ant1 OBW Verdict Pass Pass Pass 1 2 OBW OBW 3 OBW Test ItemNo.ModeFrquency 1 LE1M 2402 2 LE1M 2440 3 LE1M 2480 Test Parameters Antenna Test BandBluetooth_LE1M Ant1 Output Power Verdict Pass Pass Pass 1 2 Output Power Output Power 3 Output Power Test ItemNo.ModeFrquency 1 LE1M 2402 2 LE1M 2402 3 LE1M 2402 4 LE1M 2440 5 LE1M 2440 6 LE1M 2440 7 LE1M 2480 8 LE1M 2480 9 LE1M 2480 Test Parameters Antenna Test BandBluetooth_LE1M Ant1 100kHz Bandwidth Verdict Pass Pass Pass Pass Pass Pass Pass Pass Pass 1 2 100kHz Bandwidth 100kHz Bandwidth 3 4 100kHz Bandwidth 100kHz Bandwidth 5 6 100kHz Bandwidth 100kHz Bandwidth 7 8 100kHz Bandwidth 100kHz Bandwidth 9 100kHz Bandwidth Test ItemNo.ModeChannelBandwitdhDetectorPolarization Restricted Band 1 BLE_1M 2402AVG Horizontal Restricted Band 2 BLE_1M 2402PEAK Horizontal Restricted Band 3 BLE_1M 2402AVGVertical Restricted Band 4 BLE_1M 2402PEAKVertical Restricted Band 5 BLE_1M 2480AVG Horizontal Restricted Band 6 BLE_1M 2480PEAK Horizontal Restricted Band 7 BLE_1M 2480AVGVertical Restricted Band 8 BLE_1M 2480PEAKVertical AntennaBT Test Parameters Test BandBLE 1 2 Restricted Band Restricted Band 3 4 Restricted Band Restricted Band 5 6 Restricted Band Restricted Band 7 8 Restricted Band Restricted Band Test ItemNo.ModeFrquency BandwidthDetectorHarmonicPolarization Harmonic 1 BLE_1M 4804AVG2Horizontal Harmonic 2 BLE_1M 4804PEAK2Horizontal Harmonic 3 BLE_1M 4804AVG2Vertical Harmonic 4 BLE_1M 4804PEAK2Vertical Harmonic 5 BLE_1M 4880AVG2Horizontal Harmonic 6 BLE_1M 4880PEAK2Horizontal Harmonic 7 BLE_1M 4880AVG2Vertical Harmonic 8 BLE_1M 4880PEAK2Vertical Harmonic 9 BLE_1M 4960AVG2Horizontal Harmonic 10 BLE_1M 4960PEAK2Horizontal Harmonic 11 BLE_1M 4960AVG2Vertical Harmonic 12 BLE_1M 4960PEAK2Vertical Test Parameters Antenna Test BandBLE BT 1 2 Harmonic Harmonic 3 4 Harmonic Harmonic 5 6 Harmonic Harmonic 7 8 Harmonic Harmonic 9 10 Harmonic Harmonic 11 12 Harmonic Harmonic Test ItemNo.ModeFrquency 1 LE1M 2402 2 LE1M 2440 3 LE1M 2480 Test Parameters Antenna Test BandBluetooth_LE1M Ant1 PSD Verdict Pass Pass Pass 1 2 PSD PSD 3 PSD

Page 1 of 29 Report No.: OT-261-RWD-010 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) RADIO PERFORMANCE TEST REPORT Test Report No. : OT-261-RWD-010 Reception No. : 2512004146 Applicant : Remote Solution Co., Ltd. Address : 92, Chogokri, Nammyun, Kimchon City, Kyungbuk, 740-871, South Korea Manufacturer : Remote Solution Co., Ltd. Address : 326-14, Apo-daero, Nam-myeon, Gimcheon-si, Gyeongsangbuk-do, 39662, South Korea Type of Equipment : Remote controller FCC ID. : TX4-RE78 Model Name : RE78 Multiple Model Name : N/A Serial number : N/A Total page of Report : 29 pages (including this page) Date of Incoming : December 15, 2025 Date of issue : January 13, 2026 SUMMARY The equipment complies with the regulation; FCC PART 15 SUBPART C Section 15.247 This test report only contains the result of a single test of the sample supplied for the examination. It is not a generally valid assessment of the features of the respective products of the mass-production. This test report is not associated with the accreditation granted by the Korean Laboratory Accreditation Scheme (KOLAS). Tested by Ye-Bhin, Park / Engineer ONETECH Corp. Reviewed by Tae-Ho, Kim / Chief Engineer ONETECH Corp. Approved by Jae-Ho, Lee / Director ONETECH Corp. Page 2 of 29 Report No.: OT-261-RWD-010 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-RF-001(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) CONTENTS Page 1. VERIFICATION OF COMPLIANCE ............................................................................................................................. 5 2. TEST SUMMARY .............................................................................................................................................................. 6 2.1 TEST ITEMS AND RESULTS ............................................................................................................................................. 6 2.2 ADDITIONS, DEVIATIONS, EXCLUSIONS FROM STANDARDS ........................................................................................... 6 2.3 RELATED SUBMITTAL(S) / GRANT(S) ............................................................................................................................ 6 2.4 PURPOSE OF THE TEST ................................................................................................................................................... 6 2.5 TEST METHODOLOGY .................................................................................................................................................... 6 2.6 TEST FACILITY ............................................................................................................................................................... 6 3. GENERAL INFORMATION ............................................................................................................................................ 7 3.1 PRODUCT DESCRIPTION ................................................................................................................................................. 7 3.2 MAXIMUM PEAK OUTPUT POWER ................................................................................................................................ 7 3.3 ALTERNATIVE TYPE(S)/MODEL(S); ALSO COVERED BY THIS TEST REPORT. ................................................................ 7 4. EUT MODIFICATIONS .................................................................................................................................................... 7 5. SYSTEM TEST CONFIGURATION ............................................................................................................................... 8 5.1 JUSTIFICATION ............................................................................................................................................................... 8 5.2 PERIPHERAL EQUIPMENT .............................................................................................................................................. 8 5.3 MODE OF OPERATION DURING THE TEST ...................................................................................................................... 8 5.4 CONFIGURATION OF TEST SYSTEM ............................................................................................................................... 9 5.5 ANTENNA REQUIREMENT .............................................................................................................................................. 9 6. MEASUREMENT UNCERTAINTY .............................................................................................................................. 10 7. PRELIMINARY TEST .................................................................................................................................................... 10 7.1 AC POWER LINE CONDUCTED EMISSIONS TESTS ....................................................................................................... 10 7.2 GENERAL RADIATED EMISSIONS TESTS ..................................................................................................................... 10 7.3 LIST OF TEST EQUIPMENT ................................................................................................................................... 11 8. DESCRIPTION OF TEST ............................................................................................................................................... 12 8.1 DUTY CYCLE ...............................................................................................................................................…

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1 RE78-Antenna Approval sheet Nov 17, 2025 -PCB Overview & Matching Value -VSWR & Smith Chart / 3D Gain data -2D Radiation Pattern & Gain -3D Radiation pattern Rev 1.0 BydesignedBycheckedByapproved Kim.j.s- 2025.11.172025.11.17 JI Kwon 2 Specification 1. Features and Application： This product is for BT_BLE band ( 2402 ~ 2480 MHz ) 3 Measurement Process SWR / Return Loss Use Network Analyzer when measuring SWR/Return loss and selecting standard SPL. E5071B Agilent Network Analyzer AdditionalFeatures: 300 kHzto8.5 GHz 125 dBdynamicrangeattestport(typical) 9.6 us/pointsweepspeed 0.001 dBRMS tracenoise Integrated2-, 3-and 4-ports withbalancedmeasurements Fixtureembedding/de-embeddingand portcharacteristicimpedance conversion Frequency-offsetmodeforfrequencytranslateddevices. Built-inVisualBasicforApplications(VBA) MeasurementWizardAssistant(MWA) software 4 Measurement Process Gain Antenna gain is measured in the Anechoic Chamber oSize: 5.5(L) m×5.5(W) m×5.0(H) m oFrequencyrange: 700 MHzto8.0 GHz(FarField) 5 Electrical Characteristics This specification covers the dielectric pattern antenna RE78 used in Bluetooth ITEMSPECIFICATION Frequency Range2402 ~ 2480 MHz VSWR2.5 : 1 Max PolarizationLinear Frequency [MHz]2400244024502480 Gain [dBi] Peak3.563.773.773.69 Average-1.51-1.25-1.20-1.40 Efficiency [%]70.5974.9575.7772.38 Manufacturer : Remote Solution Name : RS ANT1 Peak[dBi] : +3.77 dBi 6 PCB Overview & Matching Value Manufacturer : Remote Solution Name : RS ANT1 7 VSWR & Smith Chart / 3D Gain data [ RS ANT1 ] 8 3D Radiation pattern ( RS ANT1 ) 9 Thank you