NPI116360Hand-held remote control with BLE for use with LEGO units.

LEGO System A/S Aastvej 1 DK-7190 Billund Denmark Tel.: +45 79 50 60 70 Fax: +45 75 33 83 77 www.LEGO.com CVR No. 47 45 87 14 COVERED EQUIPMENT ATTESTATION LETTER 24 June 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA RE: Attestation Statements Part 2.911(d)(5)(i) and Part 2.911(d)(5)(ii) Filing Re. KDB 986446 D01 FCC ID: NPI116360 Dear Sir or Madam, We, LEGO System A/S (“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. We also certify 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. If you have any questions, please contact us. Sincerely, Contact name: Uffe Rune Gøtterup Company name: LEGO System A/S Address: Aastvej 1, 7190 Billund - DK E-mail: [email protected] Tel: +45 7950 2230

LEGO System A/S Aastvej 1 DK-7190 Billund Denmark Tel.: +45 79 50 60 70 Fax: +45 75 33 83 77 www.LEGO.com CVR No. 47 45 87 14 CONFIDENTIALITY LETTER 24 June 2026 TUV SUD BABT UNLIMITED (TCB) Octagon House, Concorde Way Segensworth North, Fareham, Hampshire, PO15 5RL RE: Confidentiality Request FCC ID: NPI116360 Model: HANDSET NO.6 Pursuant to FCC 47 CFR 0.457(d)(1)(ii) and FCC 47 CFR 0.459 of the Commission’s Rules, LEGO System A/S hereby requests permanent confidential treatment of information accompanying this application as outlined below: • Schematics • Bill of Materials/Parts List • Block Diagrams • Theory of Operation LEGO System A/S also hereby requests short-term confidential treatment of information accompanying this application as outlined below for a period of 180 days: • Internal Photos • External Photos • User Manual • Test Set-up Photographs The above 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. The Applicant understands that pursuant to FCC 47 CFR 0.457(d)(1)(ii), disclosure of this Application and all accompanying materials will not be made before the date of the Grant for this Application. Yours sincerely, Company Officer: Uffe Rune Gøtterup Telephone Number: +45 79502230 Email: [email protected]

LEGO System A/S Aastvej 1 DK-7190 Billund Denmark Tel.: +45 79 50 60 70 Fax: +45 75 33 83 77 www.LEGO.com CVR No. 47 45 87 14 Letter of Authorization 04 June 2026 To whom it may concern, We, LEGO System A/S Aastvej 1 7190 Billund Denmark Hereby authorise: TÜV SÜD Octagon House Concorde Way Fareham. PO15 5RL United Kingdom And its associates, to act on our behalf as our agent with regard to gaining FCC Certification for the following product: Model Number: HANDSET NO.6 Model Name: HANDSET NO.6 Brand: LEGO This includes handling your specific technical regulations and certification procedures. Yours sincerely, ________________ Name: Uffe Rune Gøtterup Position: Compliance Manager Company name: LEGO System A/S 4/6/2026

TÜV SÜD is a trading name of TUV SUD Ltd Registered in Scotland at East Kilbride, Glasgow G75 0AF, United Kingdom Registered number: SC215164 TUV SUD Ltd is a TÜV SÜD Group Company Phone: +44 (0) 1489 558100 Fax: +44 (0) 1489 558101 www.tuvsud.com/en TÜV SÜD Octagon House Concorde Way Fareham Hampshire PO15 5RL United Kingdom TÜV SÜD SIGNATURE NAME JOB TITLE RESPONSIBLE FOR ISSUE DATE Steve Marshall Senior Engineer Authorised Signatory 12 August 2026 Signatures in this approval box have checked this document in line with the requirements of TÜV SÜD document control rules. FCC Accreditation 294497/UK2010 Octagon House, Fareham Test Laboratory EXECUTIVE SUMMARY The wireless devices described within this report are compliant with the exemption criteria related to human exposure to electromagnetic fields laid out in FCC CFR Title 47 Part 1.1307. RF Exposure Exemption Report Manufacturer: LEGO System A/S Model: HANDSET NO.6 In accordance with FCC CFR 47 Part 1.1307 Prepared for: LEGO System A/S Aastvej 1 7190, Billund Denmark COMMERCIAL-IN-CONFIDENCE FCC ID: NPI116360 Document 75966668-19 Issue: 02 DISCLAIMER AND COPYRIGHT This non-binding report has been prepared by TÜV SÜD with all reasonable skill and care. The document is confidential to the Client and TÜV SÜD. This document may not be reproduced except in entirety, without the prior written approval of TÜV SÜD. © 2026 TÜV SÜD. This report relates only to the actual item/items tested. ACCREDITATION Our UKAS Accreditation does not cover opinions and interpretations and any expressed are outside the scope of our UKAS Accreditation. Results of tests not covered by our UKAS Accreditation Schedule are marked NUA (Not UKAS Accredited). Results of tests covered by our Flexible UKAS Accreditation Schedule are marked FS (Flexible Scope). Document 75966668-19 Issue: 02 COMMERCIAL-IN-CONFIDENCE COMMERCIAL-IN-CONFIDENCE Page 1 of 9 Contents 1 Report Summary ......................................................................................................................... 2 1.1 Report Modification Record ........................................................................................................... 2 1.2 Introduction .................................................................................................................................... 2 1.3 Brief Summary of Results ............................................................................................................. 3 1.4 Product Information ....................................................................................................................... 4 1.5 Test Location ................................................................................................................................. 6 2 Assessment Details .................................................................................................................... 7 2.1 Single RF Source Options for Determination of Exemption .......................................................... 7 2.2 Multiple RF Sources Options for Determination of Exemption ..................................................... 8 2.3 Individual Antenna Port Exposure Results .................................................................................... 9 Document 75966668-19 Issue: 02 COMMERCIAL-IN-CONFIDENCE COMMERCIAL-IN-CONFIDENCE Page 2 of 9 1 Report Summary 1.1 Report Modification Record Alterations and additions to this report will be issued to the holders of each copy in the form of a complete document. Issue Description of Change Date of Issue 1 First Issue 19-May-2026 2 Increased conducted output power and antenna gain 12-Aug-2026 Table 1 1.2 Introduction Applicant LEGO System A/S Manufacturer LEGO System A/S Model Number(s) HANDSET NO.6 Hardware Version(s) F Software Version(s) V2.0.00.0320 Specification/Issue/Date FCC 47 CFR Part 1.1307: 2024 Order Number Date 7000567817 3 rd August 2026 Related Document(s) • KDB 447498 D04 v01 • FCC 47 CFR Part 2.1093: 2024 Document 75966668-19 Issue: 02 COMMERCIAL-IN-CONFIDENCE COMMERCIAL-IN-CONFIDENCE Page 3 of 9 1.3 Brief Summary of Results The wireless devices described within this report are compliant with the exemption criteria related to human exposure to electromagnetic fields laid out in FCC CFR Title 47 Part 1.1307. The calculations shown in this report were made in accordance with the procedures specified in the applied test specification(s). Document 75966668-19 Issue: 02 COMMERCIAL-IN-CONFIDENCE COMMERCIAL-IN-CONFIDENCE Page 4 of 9 1.4 Product Information 1.4.1 Technical Description Construction toy with Bluetooth 1.4.2 Transmitter Description The following radio access technologies and frequency bands are supported by the equipment under test. Radio Access Technology Frequency Band (MHz) Minimum Frequency (MHz) Output Power (dBm) Duty Cycle (%) Bluetooth Low Energy 2400 – 2483.5 2402 0.45 dBm 65% Table 2 - Transmitter Description - FCC Note: Transmitter power includes upper bounds of uncertainty therefore maximum values are used. Document 75966668-19 Issue: 02 COMMERCIAL-IN-CONFIDENCE COMMERCIAL-IN-CONFIDENCE Page 5 of 9 1.4.3 Antenna Description The following antennas are supported by the equipment under test. Radio Access Technology Antenna Model Gain (dBi) Antenna Length (cm) Minimum Separation Distance (mm) Bluetooth Low Energy Chip antenna Type of housing: Plastic Antenna stub: None Manufacturer: BOURNS Order Number: CI99001 -1.85 0.52 3.30mm Table 3 - Antenna Description In the case of more than one type of antenna being supported by the equipment, the calculation is based on the maximum of the antenna gains. If other antennas can be used that have greater gains, the minimum separation distances will need to be recalculated. Note: Antenna gain includes upper bounds of uncertainty therefore maximum values are used. 1.4.4 Equipment Configuration Single transmitter. Document 75966668-19 Issue: 02 COMMERCIAL-IN-CONFIDENCE COMMERCIAL-IN-CONFIDENCE …

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TÜV SÜD is a trading name of TUV SUD Ltd Registered in Scotland at East Kilbride, Glasgow G75 0QF, United Kingdom Registered number: SC215164 TUV SUD Ltd is a TÜV SÜD Group Company Phone: +44 (0) 1489 558100 Fax: +44 (0) 1489 558101 www.tuvsud.com/en TÜV SÜD Octagon House Concorde Way Fareham Hampshire PO15 5RL United Kingdom TÜV SÜD Roxtra 328983 DIVPS Main V5 SIGNATURE NAME JOB TITLE RESPONSIBLE FOR ISSUE DATE Matthew Russell Chief Engineer, RF Authorised Signatory 11 August 2026 Signatures in this approval box have checked this document in line with the requirements of TÜV SÜD document control rules. RESPONSIBLE FOR NAME DATE SIGNATURE Testing Pier-Angelo Lorusso 11 August 2026 George Williams 11 August 2026 FCC Accreditation: 492497/UK2010 Octagon House, Fareham Test Laboratory ISED Accreditation: 12669A/UK0003 Octagon House, Fareham Test Laboratory EXECUTIVE SUMMARY / ENGINEERING STATEMENT The measurements shown in this report were made in accordance with the procedures described on the test pages A sample of this product was tested to demonstrate limited compliance with FCC 47 CFR Part 15C, 2024, ISED RSS-247, Issue 4 (2025-07) and ISED RSS-GEN, Issue 5 (2018-04) + A2 (2021-02) for the tests detailed in section 1.3. The sample tested was found to comply with the requirements defined in the applied rules. FCC and ISED Test Report Manufacturer: LEGO System A/S Model: HANDSET NO.6 In accordance with FCC 47 CFR Part 15C and ISED RSS-247 and ISED RSS-GEN Technology: (2.4 GHz Bluetooth Low Energy) Prepared for: LEGO System A/S Aastvej 1 7190 Billund Denmark FCC ID: NPI116360 IC: 3072A-116360 COMMERCIAL-IN-CONFIDENCE Document 75966668-11 Issue 03 DISCLAIMER AND COPYRIGHT This non-binding report has been prepared by TÜV SÜD with all reasonable skill and care. The document is confidential to the potential Client and TÜV SÜD. No part of this document may be reproduced without the prior written approval of TÜV SÜD. © 2026 TÜV SÜD. This report relates only to the actual item/items tested. ACCREDITATION Our UKAS Accreditation does not cover opinions and interpretations and any expressed are outside the scope of our UKAS Accreditation. Results of tests not covered by our UKAS Accreditation Schedule are marked NUA (Not UKAS Accredited). Results of tests covered by our Flexible UKAS Accreditation Schedule are marked FS (Flexible Scope). Test Report - Document 75966668-11 Issue 03 COMMERCIAL-IN-CONFIDENCE Page 1 of 55 Contents 1 Report Summary ......................................................................................................................... 2 1.1 Report Modification Record ........................................................................................................... 2 1.2 Introduction .................................................................................................................................... 2 1.3 Brief Summary of Results ............................................................................................................. 3 1.4 RSP-100 Form B information ........................................................................................................ 4 1.5 Customer Supplied Form .............................................................................................................. 5 1.6 Product Information ....................................................................................................................... 9 1.7 Deviations from the Standard ........................................................................................................ 9 1.8 EUT Modification Record .............................................................................................................. 9 1.9 Test Location ................................................................................................................................. 9 2 Test Details ................................................................................................................................ 10 2.1 Restricted Band Edges ............................................................................................................... 10 2.2 Spurious Radiated Emissions ..................................................................................................... 14 2.3 Emission Bandwidth .................................................................................................................... 36 2.4 Maximum Conducted Output Power ........................................................................................... 42 2.5 Authorised Band Edges .............................................................................................................. 45 2.6 Power Spectral Density ............................................................................................................... 48 3 Photographs .............................................................................................................................. 51 4 Measurement Uncertainty ........................................................................................................ 55 Test Report - Document 75966668-11 Issue 03 COMMERCIAL-IN-CONFIDENCE Page 2 of 55 1 Report Summary 1.1 Report Modification Record Alterations and additions to this report will be issued to the holders of each copy in the form of a complete document. Issue Description of Change Date of Issue 01 First version 05-June-2026 02 Corrections to RSP-100, Form B Spurious Emission Radiated value and RF power Maximum and Minimums. 14-Jul-2026 03 Updated maximum Antenna Gain values 11-Aug-2026 Table 1 1.2 Introduction Applicant LEGO System A/S Manufacturer LEGO System A/S Model Number HANDSET NO.6 Hardware Version Identification Number (HVIN) HANDSET NO.6 Serial Number(s) Not Serialised (FAR-1024092-89) Not Serialised (FAR-1028351-41) Hardware Version(s) F Software Version(s) V2.0.00.0320 Number of Samples Tested 2 Test Specification/Issue/Date FCC 47 …

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Page 1 / 10 APPROVALSHEET CustomerNameTonly ProductModelHANDSET CustomerP/N SpecificationsBLEAntenna ZTXP/N Productiondate2026.03.11 RevisionRev.1.0 ZTX FICTIONDQER&D Customer PURQCR&D Manufacturer:ShenzhenZhongTianXunCommunicationTechnologyCo.,Ltd. Address:No.34,ShilongAvenue,ShiyanTown,BaoanDistrict,ShenzhenCity.(Tengda IndustrialPark) PostalCode:518000Tel:0755-27588320 Fax:0755-27588045http://www.chinaztx.com Sampleseal Page 2 / 10 APPROVALSHEETREVISIONHISTORY VersionDateChangeDescriptionNote Rev.1.02026.03.11Firsteditionapprovalsheet Page 3 / 10 Index 一、Cover······························1 二、Colophon····························2 三、Index·····························3 四、Thebasicparameters······················4 五、TestEquipment&Conditions··················5 六、TestReport·························6-10 Page 4 / 10 Thebasicparameters ElectricalCharacteristics Frequency2400MHz~2500MHz VSWR <3 Efficiency >10% Impedance50Ohm PolarizationLinear PeakGain Antennatype <3.5dBi Ceramic B.Material&MechanicalCharacteristics MaterialofRadiatorCeramic C.Environmental Page 5 / 10 TestEquipment&Conditions Page 6 / 10 AntennaImpedance:S22 HANDSET： Efficiency&Gain： HANDSET： Page 7 / 10 3D&2DPassiveAntennaPatterns： HANDSET： 2DTISRadiationPattern： HANDSET0Channel Page 8 / 10 HANDSET20Channel HANDSET39Channel Page 9 / 10 OTA： Page 10 / 10 Antenna3dBBeamwidthLabeling: HANDSET: 2402MHzPhi=0 ° 2402MHzPhi=90° 2402MHzTheta=90 ° 2442MHzPhi=0° 2442MHzPhi=90° 2442MHzTheta=90° 2480MHzPhi=0 ° 2480MHzPhi=90° 2480MHzTheta=90 °