2AV2J-N3UMSmart Projector

U.S. Agent Designation for Service of Process- Certification Attestation Letter 4/8/2026 TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID:2AV2J-N3UM FRN of applicant: 0029376316 Per section 2.911(d)(7) of the FCC rules, Shenzhen Dangs Science and Technology Co.,Ltd. FRN:0029376316 ("the applicant") certifies that the equipment for which authorization is sought is designated to thefollowing U.S. agent* for service of process: Company Name:Global Product Services and Consultation LLC FCC Registration Number (FRN): 0033406703 Physical U.S.Company Address: 328 W Palm Ave. Monrovia, CA91016 Contact Person:Michael Chan Tel: +1 626 366 4358 Agent Email Address:[email protected] The above contact person accepts the obligation for service of process. The applicant accepts 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. Applicant Signed: Signed： Printed name:Steven Yue Title: EMC&PE Company Name: Shenzhen Dangs Science and Technology Co.,Ltd. Date: 4/8/2026 Agent Signed (if different from Applicant): Signed: Printed name:Michael Chan Title:Technical Director Company Name: Global Product Services and Consultation LLC Date:4/28/2026 * 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. SC6042029

Permanent adhesive type is used to fix the label ,the label drawing isn't removed easily.

Model / Modèle / 番号 : N3Ultra Input / Entrée /入力: 100-240V~50/60Hz 3.5A USB Output / Sortie USB / USB 出力 : 5V 0.5A each IC:27636-N3UM FCC ID:2AV2J-N3UM Made in China / Fabriqué en Chine Manufacturer / Fabricant / メーカー : Shenzhen Dangs Science and Technology Co., Ltd. Address / Adresse : 1301, Block D1, Chuangzhi Yuncheng, Liuxian Avenue, Nanshan District, Shenzhen, Guangdong Province, China Manufactured under license from Dolby Laboratories. Dolby, Dolby Audio, and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. Fabriqué sous licence de Dolby Laboratories. Dolby, Dolby Audio et le symbole double-D sont des marques de Dolby Laboratories Licensing Corporation. W52, W53 is indoor use only. Except for connection to Base station or Land mobile relay stations for a 5.2 GHz band high-power data communication system This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)This device may not cause harmful interference, and(2)This device must accept any interference received, including interference that may cause undesired operation. CAN ICES(B) / NMB(B) N3 Ultra Smart Projector / Projecteur intelligent / スマートプロジェクター 007-AQ0057 Dangbei Japan 株式会社 E553698 Permanent adhesive type is used to fix the label ,the label drawing isn't removed easily.

The results reported herein have been performed in accordance with the laboratory’s terms of accreditation. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report apply to the test sample(s) mentioned above at the time of the testing period only and are not to be used to indicate applicability to other similar products. FCC RF EXPOSURE REPORT For Smart Projector MODEL NUMBER: N3Ultra, N3Max REPORT NUMBER: 4792183744-1-RF-5 ISSUE DATE: April 21, 2026 FCC ID: 2AV2J-N3UM Prepared for Shenzhen Dangs Science and Technology Co., Ltd. 1301, Block D1, Chuangzhi Yuncheng, Liuxian Avenue, Nanshan District, Shenzhen, Guangdong Province, China Prepared by UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch Room 101, Building 2, No.4, Information Road, Songshan Lake, Dongguan, Guangdong, China Tel: +86 769 22038881 Fax: +86 769 33244054 Website: www.ul.com REPORT NO.: 4792183744-1-RF-5 Page 2 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Revision History Rev. Issue Date Revisions Revised By V0 April 21, 2026 Initial Issue REPORT NO.: 4792183744-1-RF-5 Page 3 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. TABLE OF CONTENTS 1. ATTESTATION OF TEST RESULTS ................................................................................. 4 2. TEST METHODOLOGY ..................................................................................................... 5 3. FACILITIES AND ACCREDITATION ................................................................................. 5 4. REQUIREMENT ................................................................................................................. 6 REPORT NO.: 4792183744-1-RF-5 Page 4 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. 1. ATTESTATION OF TEST RESULTS Applicant Information Company Name: Shenzhen Dangs Science and Technology Co., Ltd. Address: 1301, Block D1, Chuangzhi Yuncheng, Liuxian Avenue, Nanshan District, Shenzhen, Guangdong Province, China Manufacturer Information Company Name: Shenzhen Dangs Science and Technology Co., Ltd. Address: 1301, Block D1, Chuangzhi Yuncheng, Liuxian Avenue, Nanshan District, Shenzhen, Guangdong Province, China EUT Information EUT Name: Smart Projector Model: Series Model: Model difference: Brand: N3Ultra N3Max Please refer to section 5.1 Dangbei Sample Received Date: Sample Status: March 26, 2026 Normal Sample ID: 9570823 Date of Tested: April 1, 2026 to April 21, 2026 APPLICABLE STANDARDS STANDARD TEST RESULTS 447498 D04 Interim General RF Exposure Guidance v01 PASS Prepared By: Checked By: James Qin Kebo Zhang Project Engineer Operations Leader Approved By: Stephen Guo Operations Manager REPORT NO.: 4792183744-1-RF-5 Page 5 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. 2. TEST METHODOLOGY The tests documented in this report were performed in accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 and KDB 447498 D04 General RF Exposure Guidance v01. 3. FACILITIES AND ACCREDITATION Accreditation Certificate A2LA (Certificate No.: 4102.01) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. has been assessed and proved to be in compliance with A2LA. FCC (FCC Designation No.: CN1187) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. Has been recognized to perform compliance testing on equipment subject to the Commission's Declaration of Conformity (DoC) and Certification rules. ISED (Company No.: 21320) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. has been registered and fully described in a report filed with ISED. The Company Number is 21320 and the test lab Conformity Assessment Body Identifier (CABID) is CN0046. VCCI (Registration No.: C-20202, G-20240, R-20248 and T-20202) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. has been assessed and proved to be in compliance with VCCI, the Membership No. is 3793. Facility Name: Chamber E, the VCCI registration No. is G-20240 and R-20248 Shielding Room F, the VCCI registration No. is C-20202 and T-20202 Note 1: All tests measurement facilities use to collect the measurement data are located at Building 10, Innovation Technology Park, Song Shan Lake Hi tech Development Zone, Dongguan, 523808, China Note 2: The test anechoic chamber in UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch had been calibrated and compared to the open field sites and the test anechoic chamber is shown to be equivalent to or worst case from the open field site. Note 3: For below 30MHz, lab had performed measurements at test anechoic chamber and comparing to measurements obtained on an open field site. And these measurements below 30MHz had been correlated to measurements performed on an OFS. REPORT NO.: 4792183744-1-RF-5 Page 6 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. 4. REQUIREMENT LIMIT AND CALCULATION METHOD According to 447498 D04 Interim General RF Exposure Guidance v01, 2.1.4 MPE-Based …

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AntennaSPEC SupplierName ： SichuanBoantongCommunicationTechnologyCo.,Ltd. SupplierMaterialName ： Built-inAntenna-2.4G/5G-Black1.13TinWire-1st GenerationTerminal-L=200mm-FPC-38.2×6.7mm SupplierSpecificationsandModel：74300345 CVTEMaterialNumber ： 004.032.0053113 AcknowledgmentEdition ：A0-0925 Drawingversionnumber(notrequiredifthereisnodrawing) ：A0 SupplierAcknowledgmentColumn FormulateReviewApprove Xuzhangjin 2025.09.25 Qinlinshu 2025.09.25 Liulihua 2025.09.25 Address:No.6LiankunRoad,Huangpu District,Guangzhou Address: Floor5,Building8,No.218,Wenwu MiddleRoad,TangxunStreet,EconomicDevelopment Zone,MianyangCity,SichuanProvince MB：020-86154388MB：0755-29976700 Fax：Fax： DocumentRevisionHistory VersionDateDevelop/revisecontent Formulate approval A0 September 11 Firstformulation Xuzhangj in Qinlinshu/Liuli hua A0-0925 September 25 Addcustomerpartnumber Xuzhangj in Qinlinshu/Liuli hua 1st Project：Y2508261432 Date.：2025.09.25 Ver.：A0-0925 AntennaSPEC Customername：ShiKun Customerproject：CF7&CF8 CustomerP/N：004.032.0053113 B&TP/N：74300345 Spec：Built-inAntenna-2.4G/5G-Black1.13TinWire-1stGeneration Terminal-L=200mm-FPC-38.2 × 6.7mm Sealedbycorporation： compilationverifyapproval XuzhangjinQinlinshuLiulihua Sealedbycustomer： checkverifyapproval ContactinformationofB&T Contactpersonforsales ： Longmingguo MB:18576042661E-mail ： [email protected] Contactpersonfortechnical: QinLinshu MB:18776877518 E-mai ：[email protected] ContactpersonforQuality: Tanjiexin MB: 18181766292 E-mail ： [email protected] 2nd Documentmaking/revising/abolishingresume VersionDateDevelop/revisecontent Formulate approval A02025.09.11 Firstformulation Xuzhangjin Qinlinshu/Liulihua A0-09252025.09.25 Addcustomerpartnumber Xuzhangjin Qinlinshu/Liulihua 3rd Contents 1、Cover·······································································1 2、Directory····································································3 3、Productdrawing···························································4 4、PerformanceparametersTable··········································5 5、Electricalperformancetestreport·······································6~9 6、ProhibitedSubstancesGuarantee·······································9 7 、 packagingspecification···················································10 8 、 AntennainstallationpositionDiagram·································11 9、Reliabilitytestrequirements·············································11~12 4th 3 、 Productdrawing 5th 4、Properties&parameter Electricalparameter FreqRange 2400~2500/5150~5850MHz CharacteristicImpedance 50 Ω VSWR ＜ 2 Gain 5.49dBi TheMaxinputpower <10w PolarizationmodeLinearpolarization Radiationdirectionomnidirectional JointtypeTerminal Mechanicalparameter Length 200±3mm Terminalholdingforce ≥0.8㎏f Coaxialcable Black1.13TinWire Saltspraytest 24H Environmentparameter OperatingTemp -30 °C ~65 °C 6th 5 、Electricaltestreport（ Wholemachinetesting） ） AntennaS11parameterdiagram Standingwaveratiodata Freq/MHz240024502500515055005850 WIFI天线1.761.501.321.831.661.80 7th Antennadarkroomtestdata Antennadirectiondiagram 2400MHz 2450MHz 8th 2500MHz 5150MHz 5500MHz 5850MHz 9th ActiveOTAtestdata 6、ListofMaterialCompositionandHazardousSubstances 10th PACKINGCRITERION P/N：74300345 Spec：Built-inAntenna-2.4G/5G-Black1.13TinWire-1stGenerationTerminal-L=200mm-FPC-38.2×6.7mm 一、contentsoflabel(accordingtothecustomer'sname,refertothecorrespondingfinished productlabelproductionrequirements.Ifthereisnorequirement,itwillfollowtheordinarylabel requirements.) 内外标签长10cm宽6cm左右 Theinnerandouterlabelsareabout10cmlongand6cmwid 需方 buyer ************* 供方 vender 四川博安通通信技术有限公司 SichuanB&TTechnologyCo.,Ltd. 物料编码 PurchaseNo ************* 生产单号 MaterialNo. ***************** 品名规格 Namespecification ******** 检验员 QC ** 数量/单位 Q’ty/Unit ***** 日期 Manufacturedate ****.**.* 追溯码 Tracecode ******** 流水号 Serialnumber ** 二、Packingrequirement Operatingdescription： 1．innerpacking： 50PCSpersmallbag 200PCSperlargebag 2．outerpacking： Quantityaccordingtoactualpacking/carton Notice： 1．Whethertoaddpartitions,pearlcotton； 2．Labeling,suchasROHS； 11th 9 、 AntennainstallationpositionDiagram 10、Reliabilitytest requirements Serial Number ReliabilityTest NameExperimentalconditionsJudgmentcriteria 1 Constanttemperature andhumiditytest Hightemperature:70°C, humidity:80% RH for 24 hours;Low temperature-40°C for 24 hours;continuousfor 48 hoursin total; Appearancerequirementsbefore and after the experiment:The metalsurfacecoatingshouldbe free of peeling,cracks,wrinkles, separation,etc. Non metallic parts shouldnot discolor,crack, deform,or peel off; The electricalperformancetest meetsthe standard requirements; 12th 2 Highandlowtemperature thermalshocktest 70°Cfor2hours,-40°Cfor2hours,6 cycles,foratotalof24hours; Appearancerequirementsbefore andaftertheexperiment:The metalsurfacecoatingshouldbe freeofpeeling,cracks,wrinkles, separation,etc.Nonmetallic partsshouldnotdiscolor,crack, deform,orpeeloff;The electricalperformancetest meetsthestandard requirements; 3Saltspraytest Preparea(5±1)%NaClsolutionto ensurethatthepHvalueofthesaltsolution isneutral(6.5-7.2);Thepressurebarrel temperatureis47±1°C,thespray pressureiskeptat1.00±0.1kgf/cm2,and thesprayvolumeis1.0~2.0ml;/80cm2/h; Theexperimentlastedfor24hours; Theexposedareaoftheproduct surfacemustnothaveoxidation orrust;Oxidation/rustingarea aftersaltspraytestinother areas<1.0% 4Terminalholdingforcetest Normaltemperatureandhumidity;Test maintenanceforcerequirement: ≥ 0.8 kgf; Theterminalsandcablesarenot looseordetached;Theelectrical performancetestaftertesting meetsthestandard requirements; 5 Terminalinsertionand extractionforcetest Normaltemperatureandhumidity;The terminalandseatareconnectednormally, withaninsertionforceof 0.8~3kgf/extractionforceof≥0.8kgf； Theinsertion/extractionforce oftheterminalmeetsthe requirements,andthe terminalhasnodefectssuch asdetachmentordamage;

The results reported herein have been performed in accordance with the laboratory’s terms of accreditation. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report apply to the test sample(s) mentioned above at the time of the testing period only and are not to be used to indicate applicability to other similar products. FCC 47 CFR PART 15 SUBPART E ISED RSS-247 Issue 4 TEST REPORT For Smart Projector MODEL NUMBER: N3Ultra，N3Max REPORT NUMBER: 4792183744-1-RF-2 ISSUE DATE: April 21, 2026 FCC ID: 2AV2J-N3UM IC : 27636-N3UM Prepared for Shenzhen Dangs Science and Technology Co., Ltd. 1301, Block D1, Chuangzhi Yuncheng, Liuxian Avenue, Nanshan District, Shenzhen, Guangdong Province, China Prepared by UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch Room 101, Building 2, No.4, Information Road, Songshan Lake, Dongguan, Guangdong, China Tel: +86 769 22038881 Fax: +86 769 33244054 Website: www.ul.com REPORT NO.: 4792183744-1-RF-2 Page 2 of 177 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Revision History Rev. Issue Date Revisions Revised By V0 April 21, 2026 Initial Issue REPORT NO.: 4792183744-1-RF-2 Page 3 of 177 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Summary of Test Results Test Item Clause Limit/Requirement Result ON TIME AND DUTY CYCLE ANSI C63.10-2020, Clause 12.2 None; for reporting purposes only. Pass 6dB AND 26dB EMISSION BANDWIDTH AND 99% OCCUPIED BANDWIDTH KDB 789033 D02 v02r01 Section C.1 FCC Part 15.407 (a)/(e), RSS-247 Issue 4, Clause 7.3.5.2 RSS-Gen Clause 6.7 Pass CONDUCTED OUTPUT POWER KDB 789033 D02 v02r01 Section E.3.a (Method PM)/KDB 789033 D02 v02r01 Section E.3.a (Method PM) Section E.2.d (Method SA-2) FCC 15.407 (a) RSS-247 Clause 7.3 Pass POWER SPECTRAL DENSITY KDB 789033 D02 v02r01 Section F FCC 15.407 (a) RSS-247 Clause 7.3 Pass AC Power Line Conducted Emission ANSI C63.10-2020, Clause 6.2. FCC 15.207 RSS-GEN Clause 8.8 Pass Radiated Emissions and Band Edge Measurement KDB 789033 D02 v02r01 Section G.3, G.4, G.5, and G.6 FCC 15.407 (b) FCC 15.209 FCC 15.205 RSS-247 Clause 7.3 RSS-GEN Clause 8.9 Pass FREQUENCY STABILITY ANSI C63.10-2020,Clause 6.8 FCC 15.407 (g) Pass Dynamic Frequency Selection (Slave) KDB 905462 D03 UNII Clients Without Radar Detection New Rules v01r02 FCC Part 15.407 (h), RSS-247 Issue 4 Clause 7.3.6 Pass Antenna Requirement N/A FCC 47 CFR Part 15.203/ 15.407(a)(1) (2), RSS-Gen Issue 5, Clause 6.8 Pass 1. For ISED, this report is also performed according to ANSI C63.10-2020 + Cor.1-2023 + C63.10a-2024 + Errata to C63.10a-2024 standards. 2. For FCC, this report is also performed according to ANSI C63.10-2020 + Cor.1-2023 standards. *This test report is only published to and used by the applicant, and it is not for evidence purpose in China. *The measurement result for the sample received is <Pass> according to <FCC 47 CFR PART 15 SUBPART E, ISED RSS-247 Issue 4> when <Simple Acceptance> decision rule is applied. Decision rule for statement of conformity: The measurement uncertainty is not taken into account for statement of conformity. REPORT NO.: 4792183744-1-RF-2 Page 4 of 177 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. CONTENTS 1. ATTESTATION OF TEST RESULTS ..................................................................................... 6 2. TEST METHODOLOGY ......................................................................................................... 7 3. FACILITIES AND ACCREDITATION ..................................................................................... 8 4. CALIBRATION AND UNCERTAINTY ................................................................................... 9 4.1. MEASURING INSTRUMENT CALIBRATION ..................................................................... 9 4.2. MEASUREMENT UNCERTAINTY ...................................................................................... 9 5. EQUIPMENT UNDER TEST ................................................................................................ 10 5.1. DESCRIPTION OF EUT ................................................................................................... 10 5.2. CHANNEL LIST ................................................................................................................ 11 5.3. MAXIMUM POWER .......................................................................................................... 12 5.4. TEST CHANNEL CONFIGURATION ................................................................................ 13 5.5. THE WORSE CASE POWER SETTING PARAMETER .................................................... 14 5.6. WORSE CASE CONFIGURATIONS ................................................................................ 16 5.7. DESCRIPTION OF AVAILABLE ANTENNAS ................................................................... 17 5.8. SUPPORT UNITS FOR SYSTEM TEST ........................................................................... 19 6. MEASURING EQUIPMENT AND SOFTWARE USED......................................................... 20 7. ANTENNA PORT TEST RESULTS ..................................................................................... 23 7.1. ON TIME AND DUTY CYCLE ........................................................................................... 23 7.2. 6DB AND 26DB EMISSION BANDWIDTH AND 99% OCCUPIED BANDW…

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