2BS46-HCB25-PEHUUCH Box

Shenzhen Huchi Technology Co., Ltd. 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – EquipmentType Company name: Shenzhen Huchi Technology Co., Ltd. Address: Room 506, Zongtai Lukai Zhihuiyuan, Liuxian 2nd Road, Bao'an District, Shenzhen,Guangdong, China Product Name: HUUCH Box FCC ID: 2BS46-HCB25-PE Model(s): HCB001 2.911(d)(5)(i) EquipmentType We, [Shenzhen Huchi Technology 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: Eric wong Date: 12/31/2025 Title and Company name: Manager / Shenzhen Huchi Technology 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

Shenzhen Huchi Technology Co., Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.3 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Shenzhen Huchi Technology Co., Ltd. Address: Room 506, Zongtai Lukai Zhihuiyuan, Liuxian 2nd Road, Bao'an District, Shenzhen,Guangdong, China Product Name: HUUCH Box FCC ID: 2BS46-HCB25-PE Model(s): HCB001 2.911(d)(5)(ii) Applicant filing We, [Shenzhen Huchi Technology Co., Ltd.] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 ,established pursuant to §1.50002 of this chapter,as an entity producing coveredcommunications equipment. Yours sincerely, Name: Eric wong Date: 12/31/2025 Title and Company name: Manager / Shenzhen Huchi Technology 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

Shenzhen Huchi Technology Co., Ltd. Room 506, Zongtai Lukai Zhihuiyuan, Liuxian 2nd Road, Bao'an District, Shenzhen Guangdong, China Date: 2025-12-23 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2BS46-HCB25-PE FRN: 0037634375 US Agent – Attestation Statement / Part 2.911(d)(7) Shenzhen Huchi Technology Co., Ltd. certifies, that as of 2025-12-23, we have designated FCC US Agent, LLC to accept service of process on our behalf for FCC ID: 2BS46-HCB25-PE Shenzhen Huchi Technology Co., Ltd., accepts to maintain an agent of 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. FCC US Agent, LLC, accepts as of the date of the filing of this application, the obligation of being the designated agent for the purpose of accepting service of process on behalf of Shenzhen Huchi Technology Co., Ltd. for FCC ID: 2BS46-HCB25-PE Designated Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, Company: Shenzhen Huchi Technology Co., Ltd. Designated Agent: FCC US Agent, LLC Company Representative: Eric wong Designated Agent Representative: Tim Payne Signature: Signature:

Shenzhen Huchi Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 12/24/2025 Subject; Request for Confidentiality FCC ID: 2BS46-HCB25-PE 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 BOM List Block Diagram Operational Description Software Security Requirements for UNII devices 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 pursuantto 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: Eric wong Title: Manager

Shenzhen Huchi Technology Co., Ltd. Letter of Authorization Company: Shenzhen Huchi Technology Co., Ltd. Address: Room 506, Zongtai Lukai Zhihuiyuan, Liuxian 2nd Road, Bao'an District, Shenzhen,Guangdong, China Product Name: HUUCH Box Model Number(s): HCB001 Product Description: HUUCH Box We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required 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. Signature: Date: 2025/12/31 Name: Eric wong Title: Manager Company: Shenzhen Huchi Technology Co., Ltd.

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FCC ID: 2BS46-HCB25-PE Maximum Permissible Exposure (MPE) According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b) Limits for Maximum Permissible Exposure (MPE) MPE Calculation Method E (V/m) ＝ d G P**30 Power Density: Pd (W/m²) ＝ 377 2 E E ＝ Electric field (V/m) P ＝ Average RF output power (W) G ＝ EUT Antenna numeric gain (numeric) d ＝ Separation distance between radiator and human body (m) The formula can be changed to Pd ＝ 2 *377 * *30 D G P From the EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained. BLE: Antenna gain:2.35dBi; R=20cm conducted power Evaluation result Power density (dBm)(mW)(dBi)Numeric 2402-2.14 -2±1-1 0.7942.351.720.00031 2440-4.93 -4 ±1-3 0.5012.351.720.00021 2480-2.89-2±1-1 0.7942.351.720.00031 2402-1.37-1 ±10 1.0002.351.720.00031 2440-3.97-3 ±1-2 0.6312.351.720.00021 2480-2.14-2 ±1-1 0.7942.351.720.00031 (mW/cm2) BLE 1M BLE 2M (dBm) Tune-up power (dBm) (mW/cm2 ) MaxAntenna tune-up powerGain Channel Freq. (MHz) modulation 2.4GWIFI: Antenna gain :2.35dBi; R=20cm conducted power Evaluation result Power density (dBm)(mW)(dBi)Numeric 241219.919±120100.0002.351.720.03421 243716.616±11750.1192.351.720.01711 246219.1919±120100.0002.351.720.03421 241210.9710±11112.5892.351.720.00431 24376.446±175.0122.351.720.00171 24629.859±11010.0002.351.720.00341 241211.2411±11215.8492.351.720.00541 24376.176±175.0122.351.720.00171 246210.1610±11112.5892.351.720.00431 24227.017±186.3102.351.720.00221 24376.726±175.0122.351.720.00171 24528.938±197.9432.351.720.00271 11n40 (dBm) Tune-up power (dBm) (mW/cm2 ) (mW/cm2) 11b 11g 11n20 MaxAntenna tune-up powerGain Channel Freq. (MHz) modulation 5G WIFI: Antenna gain :3.16dBi R=20cm conducted power Evaluation result Power density (dBm)(mW)(dBi)Numeric Ant 15745 9.06 9±110.0010.0003.162.070.00411 Ant 15785 8.22 8±19.007.9433.162.070.00331 Ant 15825 7.41 7±18.006.3103.162.070.00261 Ant 15745 9.56 9±110.0010.0003.162.070.00411 Ant 15785 8.37 8±19.007.9433.162.070.00331 Ant 15825 7.75 7±18.006.3103.162.070.00261 Ant 15755 8.02 8±19.007.9433.162.070.00331 Ant 15795 7.16 7±18.006.3103.162.070.00261 Ant 15745 9.39 9±110.0010.0003.162.070.00411 Ant 15785 8.14 8±19.007.9433.162.070.00331 Ant 15825 7.64 7±18.006.3103.162.070.00261 Ant 15755 7.91 7±18.006.3103.162.070.00261 Ant 15795 7.07 7±18.006.3103.162.070.00261 802.11ac80Ant 15775 8.15 8±19.007.9433.162.070.00331 (mW/cm2 )(mW/cm2) 802.11a 802.11n20 802.11n40 802.11ac20 Antenna 802.11ac40 Max Antenna tune-up powerGain modulation Channel Freq. (MHz) (dBm) Tune-up power (dBm) SIMULTANEOUS TRANSMISSIONS When a number of sources at different frequencies, and/or broadband sources, contribute to the total exposure, it becomes necessary to weigh each contribution relative to the MPE. To comply with the MPE, the fraction of the MPE in terms of E 2 , H 2 (or power density) incurred within each frequency interval should be determined and the sum of all such fractions should not exceed unity. In order to ensure compliance with the MPE for a controlled environment, the sum of the ratios of the power density to the corresponding MPE should not exceed unity. That is Result：BLE/WIFI 2.4G/WIFI 5G share the same antenna cannot transmit at same time. Conclusion: For the max result : 0.041≤ 1.0 , compliance RF exposure. Signature: Date: 2025-12-15 NAME AND TITLE (Please print or type): alex li/Manager COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ No. 24 Xinfa East Road, Xiangshan Community, Xinqiao Street, Baoan District, Shenzhen, Guangdong, People's Republic of China

MyAntennaRFTechnologyCo.,Ltd ADD:No.RM410,CountryGardenPhoenixWisdomValley,No.50TiezaiRoad,BaoanDistrict,Shenzhen,P.R.China. TEL：+86-0755-86503881FAX：+86-0755-27801677E-mail：[email protected] WIFI7F35.2x8.5V1.2L80CM1Antenna FEATURES 4.79dBiPeakGain WeldingRG1.13cable,Ipexconnector,3Mstickerforeasyinstallation. Forsmartdevicewireless,Zigbee,Bluetoothterminalwirelessreceivingantennatransmitterantenna Mountingto:non-conductivesurface Installationtype:adhesive PRODUCTS PartNo.WeightDimensions(LxWxH)CablesDimensionsConnectorColor M01-0202010R0A0.5gFPC:35.2*8.5*0.2mm Φ1.13*80.0mm IPX1Black SPECIFICATIONS PARAMETER SPECIFICATION FrequencyBands,MHz2400-25005100-7200 VSWR(Max)2:1 PeakGain,dBi(Typ)Upto4.79 PeakEfficiency,%91.39 NominalImpedance50Ω MaxPower(ambienttempof25°C)10Watts AzimuthBeamWidth(deg)Omnidirectional PolarizationLinear ColorBlack StorageTemperatureRange(°C)-40°Cto+85°C OperationalTemperatureRange(°C)-40°Cto+85°C MaterialSubstanceComplianceREACH/RoHSCompliant MyAntennaRFTechnologyCo.,Ltd ADD:No.RM410,CountryGardenPhoenixWisdomValley,No.50TiezaiRoad,BaoanDistrict,Shenzhen,P.R.China. TEL：+86-0755-86503881FAX：+86-0755-27801677E-mail：[email protected] ELECTRICALDATA ReturnLoss Efficiency（%） MyAntennaRFTechnologyCo.,Ltd ADD:No.RM410,CountryGardenPhoenixWisdomValley,No.50TiezaiRoad,BaoanDistrict,Shenzhen,P.R.China. TEL：+86-0755-86503881FAX：+86-0755-27801677E-mail：[email protected] PeakGain（dBi） Freq(MH z) Gain(dB i) Efficiency( %) Freq(MH z) Gain(dB i) Efficiency( %) Freq(MH z) Gain(dB i) Efficiency( %) 24001.6975.2161004.0580.1473201.8860.88 24101.7176.4461204.1981.0973402.1162.04 24201.7077.5161404.4685.4773602.1462.10 24301.7879.4961604.6786.7073802.3161.38 24402.1082.4261804.7690.4474002.5962.96 24502.3586.0862004.7991.6474202.6963.24 24602.2984.9662204.6891.3974402.4661.19 24702.1583.4362404.2886.2174602.4262.45 24802.1082.7062604.2485.1974802.3861.85 24901.8780.8962804.5690.6475002.4861.47 25001.6579.8663004.4587.3675202.5462.99 51003.2974.7563204.2184.7375402.6563.63 51202.9071.6863403.8978.7375602.5666.93 51402.8273.2263603.8779.9375802.2160.47 51602.9774.9663803.5375.5876001.8757.21 51803.1276.9264003.6782.2776201.9256.76 52003.1179.9664203.8680.5976402.1157.92 52202.9777.2564403.7881.3576601.8455.59 52402.8773.0564603.5877.8576801.9254.19 MyAntennaRFTechnologyCo.,Ltd ADD:No.RM410,CountryGardenPhoenixWisdomValley,No.50TiezaiRoad,BaoanDistrict,Shenzhen,P.R.China. TEL：+86-0755-86503881FAX：+86-0755-27801677E-mail：[email protected] 52602.9369.1964803.2678.0077001.9254.32 52803.2971.8665003.0576.9777202.0054.75 53003.7376.6365203.1379.0977401.8852.66 53203.6678.5965403.1177.0777601.7951.99 53403.4976.3865602.9076.1677802.0654.00 53603.3675.7465802.6072.7978002.1652.93 53803.3274.9466002.8374.7678202.0250.41 54003.5278.5466202.4975.3578401.8649.85 54203.9186.3666402.3875.8678601.8850.26 54403.5185.0866602.7576.1278801.8749.62 54603.4185.0266802.6976.3979001.4444.61 54803.0477.7667002.6673.0079201.7748.21 55003.0872.7167202.6672.2679401.6948.20 55203.0672.7067402.2972.2879601.4244.94 55403.2376.3167602.1873.8779801.4145.32 55603.3081.4067802.3275.5980001.5445.74 55803.1782.1668002.6872.4880201.8348.48 56002.9577.3968202.6371.0880401.8047.70 56202.6373.1268402.8470.3980601.3842.98 56402.8475.4568602.5969.8880801.4544.13 56602.9581.8468802.5771.9981001.6347.41 56803.1285.3169002.3468.0881201.9149.51 57002.8582.8869202.5164.6481401.6947.59 57202.7780.7269402.4762.7481601.9048.79 57402.5876.4869602.3761.8281801.7847.17 57602.5276.5069802.0361.2582002.0449.91 57802.6777.0470001.9161.5582201.8748.75 58003.0677.8370201.7960.7382401.9150.59 58203.1277.8970402.2064.0082602.0851.78 58403.1676.5170602.4362.9082801.9851.78 58602.5172.4170802.3061.9083001.8850.73 58802.6774.6471001.9660.2683202.1553.24 59002.8776.5971201.7956.9883401.7749.29 59203.3781.4671402.1060.9383601.8452.26 59403.3080.3571602.3660.8283801.8351.03 59603.0878.3771802.2559.2084002.0253.70 59802.9475.6972002.0458.5784202.1353.65 60003.2479.4372201.8159.4484402.2655.01 60203.5681.7472401.5357.1784602.0252.98 60404.0885.7272601.9558.1784802.0655.35 60604.0085.4172801.9559.8485002.0957.18 60803.9381.8173002.0561.32 MyAntennaRFTechnologyCo.,Ltd ADD:No.RM410,CountryGardenPhoenixWisdomValley,No.50TiezaiRoad,BaoanDistrict,Shenzhen,P.R.China. TEL：+86-0755-86503881FAX：+86-0755-27801677E-mail：[email protected] RADIATIONPATTERNS 2400MHzGain=1.69dBi 2450MHzGain=2.35dBi 2500MHzGain=1.65dBi 5100MHzGain=3.29dBi MyAntennaRFTechnologyCo.,Ltd ADD:No.RM410,CountryGardenPhoenixWisdomValley,No.50TiezaiRoad,BaoanDistrict,Shenzhen,P.R.China. TEL：+86-0755-86503881FAX：+86-0755-27801677E-mail：[email protected] 5500MHzGain=3.08dBi 5800MHzGain=3.06dBi 6200MHzGain=4.79dBi 6500MHzGain=3.05dBi MyAntennaRFTechnologyCo.,Ltd ADD:No.RM410,CountryGardenPhoenixWisdomValley,No.50TiezaiRoad,BaoanDistrict,Shenzhen,P.R.China. TEL：+86-0755-86503881FAX：+86-0755-27801677E-mail：[email protected] 6800MHzGain=2.68dBi 7120MHzGain=1.79dBi 2400MHzGain=1.69dBi MyAntennaRFTechnologyCo.,Ltd ADD:No.RM410,CountryGardenPhoenixWisdomValley,No.50TiezaiRoad,BaoanDistrict,Shenzhen,P.R.China. TEL：+86-0755-86503881FAX：+86-0755-27801677E-mail：[email protected] 2450MHzGain=2.35dBi 2500MHzGain=1.65dBi MyAntennaRFTechnologyCo.,Ltd ADD:No.RM410,CountryGardenPhoenixWisdomValley,No.50TiezaiRoad,BaoanDistrict,Shenzhen,P.R.China. TEL：+86-0755-86503881FAX：+86-0755-27801677E-mail：[email protected] 5100MHzGain=3.29dBi 5500MHzGain=3.08dBi MyAntennaRFTechnologyCo.,Ltd ADD:No.RM410,CountryGardenPhoenixWisdomValley,No.50TiezaiRoad,BaoanDistrict,Shenzhen,P.R.China. TEL：+86-0755-86503881FAX：+86-0755-27801677E-mail：[email protected] 5800MHzGain=3.06dBi 6200MHzGain=4.79dBi MyAntennaRFTechnologyCo.,Ltd ADD:No.RM410,CountryGardenPhoenixWisdomValley,No.50TiezaiRoad,BaoanDistrict,Shenzhen,P.R.China. TEL：+86-0755-86503881FAX：+86-0755-27801677E-mail：[email protected] 6500MHzGain=3.05dBi 6800MHzGain=2.68dBi MyAntennaRFTechnologyCo.,Ltd ADD:No.RM410,CountryGardenPhoenixWisdomValley,No.50TiezaiRoad,Ba…

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Report No.: N25111200704E Version.1.3 Page 1 of 78 RADIO TEST REPORT FCC ID: 2BS46-HCB25-PE Product: HUUCH Box Trade Mark: N/A Model No.: HCB001 Family Model: N/A Report No.: N25111200704E Issue Date: Dec. 15, 2025 Prepared for Shenzhen Huchi Technology Co., Ltd. Room 506, Zongtai Lukai Zhihuiyuan, Liuxian 2nd Road, Bao’an District, Shenzhen,Guangdong, China Prepared by Shenzhen NTEK Testing Technology Co., Ltd. No. 24 Xinfa East Road, Xiangshan Community, Xinqiao Street, Baoan District, Shenzhen, Guangdong, People's Republic of China Tel. 0755-23200050 Website: http://www.ntek.org.cn Report No.: N25111200704E Version.1.3 Page 2 of 78 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION ...................................................................................................................... 4 2 SUMMARY OF TEST RESULTS ......................................................................................................................... 5 3 FACILITIES AND ACCREDITATIONS ............................................................................................................. 6 3.1 FACILITIES..................................................................................................................................................... 6 3.2 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................. 6 3.3 MEASUREMENT UNCERTAINTY ............................................................................................................... 6 4 GENERAL DESCRIPTION OF EUT .................................................................................................................. 7 5 DESCRIPTION OF TEST MODES ..................................................................................................................... 9 6 SETUP OF EQUIPMENT UNDER TEST ......................................................................................................... 10 6.1 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ..................................................................... 10 6.2 SUPPORT EQUIPMENT............................................................................................................................... 11 6.3 EQUIPMENTS LIST FOR ALL TEST ITEMS .............................................................................................. 12 7 TEST REQUIREMENTS .................................................................................................................................... 14 7.1 CONDUCTED EMISSIONS TEST ............................................................................................................... 14 7.1.1 Applicable Standard .................................................................................................................................. 14 7.1.2 Conformance Limit ................................................................................................................................... 14 7.1.3 Measuring Instruments............................................................................................................................. 14 7.1.4 Test Configuration .................................................................................................................................... 14 7.1.5 Test Procedure ........................................................................................................................................... 14 7.1.6 Test Results ................................................................................................................................................ 15 7.2 RADIATED SPURIOUS EMISSION ............................................................................................................ 17 7.2.1 Applicable Standard .................................................................................................................................. 17 7.2.2 Conformance Limit ................................................................................................................................... 17 7.2.3 Measuring Instruments............................................................................................................................. 18 7.2.4 Test Configuration .................................................................................................................................... 18 7.2.5 Test Procedure ........................................................................................................................................... 19 7.2.6 Test Results ................................................................................................................................................ 20 7.3 6DB BANDWIDTH ....................................................................................................................................... 26 7.3.1 Applicable Standard .................................................................................................................................. 26 7.3.2 Conformance Limit ................................................................................................................................... 26 7.3.3 Measuring Instruments............................................................................................................................. 26 7.3.4 Test Setup .................................................................................................................................................. 26 7.3.5 Test Procedure ........................................................................................................................................... 26 7.3.6 Test Results ................................................................................................................................................ 26 7.4 DUTY CYCLE ...............................................................................................…

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Report No.: N25111200712E Version.1.3 Page 1 of 88 FCC RADIO TEST REPORT FCC ID: 2BS46-HCB25-PE Product: HUUCH Box Trade Mark: N/A Model No.: HCB001 Family Model: N/A Report No.: N25111200712E Issue Date: Dec. 15, 2025 Prepared for Shenzhen Huchi Technology Co., Ltd. Room 506, Zongtai Lukai Zhihuiyuan, Liuxian 2nd Road, Bao’an District, Shenzhen,Guangdong, China Prepared by Shenzhen NTEK Testing Technology Co., Ltd. No. 24 Xinfa East Road, Xiangshan Community, Xinqiao Street, Baoan District, Shenzhen, Guangdong, People's Republic of China Tel. 0755-23200050 Website: http://www.ntek.org.cn Report No.: N25111200712E Version.1.3 Page 2 of 88 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION ...................................................................................................................... 3 2 SUMMARY OF TEST RESULTS ......................................................................................................................... 4 3 FACILITIES AND ACCREDITATIONS ............................................................................................................. 5 3.1 FACILITIES..................................................................................................................................................... 5 3.2 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................. 5 3.3 MEASUREMENT UNCERTAINTY ............................................................................................................... 5 4 GENERAL DESCRIPTION OF EUT .................................................................................................................. 6 5 DESCRIPTION OF TEST MODES ..................................................................................................................... 8 6 SETUP OF EQUIPMENT UNDER TEST ......................................................................................................... 10 6.1 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ..................................................................... 10 6.2 SUPPORT EQUIPMENT............................................................................................................................... 11 6.3 EQUIPMENTS LIST FOR ALL TEST ITEMS .............................................................................................. 12 7 TEST REQUIREMENTS .................................................................................................................................... 14 7.1 CONDUCTED EMISSIONS TEST ............................................................................................................... 14 7.2 RADIATED SPURIOUS EMISSION ............................................................................................................ 17 7.3 6DB BANDWIDTH ....................................................................................................................................... 27 7.4 DUTY CYCLE ............................................................................................................................................... 29 7.5 MAXIMUM OUTPUT POWER .................................................................................................................... 30 7.6 POWER SPECTRAL DENSITY ................................................................................................................... 32 7.7 CONDUCTED BAND EDGE MEASUREMENT......................................................................................... 34 7.8 SPURIOUS RF CONDUCTED EMISSIONS................................................................................................ 36 7.9 ANTENNA APPLICATION .......................................................................................................................... 37 8 TEST RESULTS .................................................................................................................................................. 38 8.1 DUTY CYCLE ......................................................................................................................................................... 38 8.2 MAXIMUM CONDUCTED OUTPUT POWER .............................................................................................................. 45 8.3 -6DB BANDWIDTH ................................................................................................................................................. 46 8.4 OCCUPIED CHANNEL BANDWIDTH ........................................................................................................................ 53 8.5 MAXIMUM POWER SPECTRAL DENSITY LEVEL ..................................................................................................... 60 8.6 BAND EDGE ........................................................................................................................................................... 67 8.7 CONDUCTED RF SPURIOUS EMISSION ................................................................................................................... 76 Report No.: N25111200712E Version.1.3 Page 3 of 88 1 TEST RESULT CERTIFICATION Applicant’s name ......................... : Shenzhen Huchi Technology Co., Ltd. Address ....................................... : Room 506, Zongtai Lukai Zhihuiyuan, Liuxian 2nd Road, Bao’an District, Shenzhen,Guangdong, China Manufacturer's Name .................. : Shenzhen Huchi Technology Co., Ltd. Address ....................................... : Room 506, Zongtai Lukai Zhihuiyuan, Liuxian 2nd Road, Bao’an District, Shenzhen,Guangdong, China Product description Product name .............................. : HUUCH Box Trade Mark .................................. : N/A Model and/or type reference ...... : HCB001 Family Model ............................... : N/A Test sample number S2511120078-1# Date (s) of performance of tests ................ : Nov. 12, 2025 ~ Dec. 15, …

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