2BHF4-J30J30 cleaning Robot

Nanjing Huihuang Zhixing Technology Co., Ltd. 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: Nanjing Huihuang Zhixing Technology Co., Ltd. Product Name: J30 Cleaning Robot FCC ID: 2BHF4-J30 Model(s): J30,J30S 2.911(d)(5)(i) Equipment Type We, [Nanjing Huihuang Zhixing 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: Date:2024/7/25 Title and Company name: Certified Engineer / Nanjing Huihuang Zhixing 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 Address: 501-1, Building 5, No.18 Jialingjiang East Street, Jianye District，Nanjing, Jiangsu, China.

Nanjing Huihuang Zhixing Technology Co., Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.3 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Nanjing Huihuang Zhixing Technology Co., Ltd. Product Name: J30 Cleaning Robot FCC ID: 2BHF4-J30 Model(s): J30,J30S 2.911(d)(5)(ii) Applicant filing We, [Nanjing Huihuang Zhixing 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 covered communications equipment. Yours sincerely, Name: Date:2024/7/24 Title and Company name: Certified Engineer / Nanjing Huihuang Zhixing 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 Address: 501-1, Building 5, No.18 Jialingjiang East Street, Jianye District，Nanjing, Jiangsu, China.

Nanjing Huihuang Zhixing Technology Co., Ltd. U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: 07-24-2024 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2BHF4-J30 Nanjing Huihuang Zhixing Technology Co., Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, THREE STONES MEDIA LLC (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts 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. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. THREE STONES MEDIA LLC ("the agent) understand it is the agent's obligation 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. Designated U.S. Agent Company Name: THREE STONES MEDIA LLC FRN: 0033401761 GC: 2A99E Address: 1200 Broadway St. APT 329, Los Angeles, CA90015 Signature: Contact Person: Sijie Zhang Tel: +1 267 909 3692 Email: [email protected] Applicant Company Name: Nanjing Huihuang Zhixing Technology Co., Ltd. Address: 501-1, Building 5, No.18 Jialingjiang East Street, Jianye District，Nanjing, Jiangsu, China. Signature: Contact Person: Xingzhou Wang Tel: +86 15951887675 Email: [email protected]

Nanjing Huihuang Zhixing Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2024/7/24 Subject; Request for Confidentiality FCC ID: 2BHF4-J30 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 Tune-up Procedure 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: Xingzhou Wang Title: Certified Engineer

Nanjing Huihuang Zhixing Technology Co., Ltd. Letter of Authorization Company name: Nanjing Huihuang Zhixing Technology Co., Ltd. Product Name: J30 Cleaning Robot FCC ID: 2BHF4-J30 Model(s): J30,J30S Product Description: J30 Cleaning Robot 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: 2024/7/24 Name: Xingzhou Wang Title: Certified Engineer Company: Nanjing Huihuang Zhixing Technology Co., Ltd. Address: 501-1, Building 5, No.18 Jialingjiang East Street, Jianye District，Nanjing, Jiangsu, China.

Lable： J30S： J30: Location

FCC ID: 2BHF4-J30 RF Exposure Evaluation Limits 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) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 3.0–30 1842/f 4.89/f *(900/f 2 ) 6 30–300 61.4 0.163 1.0 6 300–1500 f/300 6 1500–100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f 2 ) 30 30–300 27.5 0.073 0.2 30 300–1500 f/1500 30 1500–100,000 1.0 30 f = frequency in MHz Friis transmission formula: Pd = (Pout*G)/(4*pi*r 2 ) Where Pd = power density in mW/cm 2 , Pout = output power to antenna in mW; G = gain of antenna in linear scale, Pi = 3.1416; R = distance between observation point and center of the radiator in cm Pd id the limit of MPE, 1 mW/cm 2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. According to KDB447498 General RF Exposure Guidance V06 Section 7.2 to test details are as follows Test Result of RF Exposure Evaluation 2.4G WIFI mode Mode Output power to antenna (dBm) Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result 802.11b 21.05 127.35 0.040162 1.0 PASS 802.11g 25.73 374.11 0.117981 1.0 PASS 802.11n20 26.74 472.06 0.148872 1.0 PASS 802.11n40 26.14 411.15 0.129662 1.0 PASS WCDMA II 25 316.23 0.1 1.0 PASS WCDMA IV 25 316.23 0.1 1.0 PASS WCDMA V 25 316.23 0.1 0.55 PASS LTE Band 2 25 316.23 0.1 1.0 PASS LTE Band 4 25 316.23 0.1 1.0 PASS LTE Band 5 25 316.23 0.1 0.55 PASS LTE Band 12 25 316.23 0.1 0.47 PASS LTE Band 13 25 316.23 0.1 0.52 PASS LTE Band 14 25 316.23 0.1 0.53 PASS LTE Band 66 25 316.23 0.1 1.0 PASS LTE Band 71 25 316.23 0.1 0.45 PASS Remark: 1. antenna gain=2dBi. 2. Simultaneously transmitting methods and limit for details, see Section 7.2 b),limit=1 3. Simultaneously transmitting mode Pd(LTE+WCDMA+WIIF)=(0.1/0.55)+(0.1/0.45)+(0.148872/1) =0.5529,Pd≤1,Result pass.

Project No.: ZKT-240724L8692E Page 1 of 70 FCC TEST REPORT FCC ID:2BHF4-J30 Report Number. .............................. : ZKT-240724L8692E Date of Test ................................................. : Jun. 12, 2024 to Aug. 22, 2024 Date of issue .................................... : Aug.22, 2024 Total number of pages ...................... 70 Test Result ....................................... : PASS Testing Laboratory. ........................ : Shenzhen ZKT Technology Co., Ltd. Address .......................................... : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Applicant's name ......................... : Nanjing Huihuang Zhixing Technology Co., Ltd. Address .......................................... : 501-1, Building 5, No.18 Jialingjiang East Street, Jianye District， Nanjing, Jiangsu, China. Manufacturer's name ................... : Nanjing Huihuang Zhixing Technology Co., Ltd. Address .......................................... : 501-1, Building 5, No.18 Jialingjiang East Street, Jianye District， Nanjing, Jiangsu, China. Test specification: Standard .......................................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2013 Test procedure ................................. : / Non-standard test method ............. : N/A Test Report Form No. .................... : TRF-EL-110_V0 Test Report Form(s) Originator .... : ZKT Testing Master TRF .................................... : Dated: 2020-01-06 This device described above has been tested by ZKT, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of ZKT, this document may be altered or revised by ZKT, personal only, and shall be noted in the revision of the document. Product name ................................. : J30 Cleaning Robot Trademark ...................................... : Model/Type reference ...................... : J30,J30S Ratings ............................................. : ADP:ModelABA071C-02200400C1401, AC Input 100-240VAC,DC Output 24V,4A for charging Battery:Input 21.9V DC for working Project No.: ZKT-240724L8692E Page 2 of 70 Testing procedure and testing location: Testing Laboratory ................................... : Shenzhen ZKT Technology Co., Ltd. Address ...................................................... : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Jim.Liu Tested by (name + signature) .................... : Jackson.Fang Reviewer (name + signature) ..................... : Lake Xie Approved (name + signature) .................... : Project No.: ZKT-240724L8692E Page 3 of 70 Table of Contents Page 1. VERSION 5 2. SUMMARY OF TEST RESULTS 6 2.1 TEST FACILITY 7 2.2 MEASUREMENT UNCERTAINTY 7 3. GENERAL INFORMATION 8 3.1 GENERAL DESCRIPTION OF EUT 8 3.2 DESCRIPTION OF TEST MODES 9 3.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 9 3.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 9 3.5EQUIPMENTS LIST FOR ALL TEST ITEMS 10 4. EMC EMISSION TEST 12 4.1 CONDUCTED EMISSION MEASUREMENT 12 4.1.1 POWER LINE CONDUCTED EMISSION LIMITS 12 4.1.2 TEST PROCEDURE 12 4.1.3 DEVIATION FROM TEST STANDARD 12 4.1.4 TEST SETUP 13 4.1.5 EUT OPERATING CONDITIONS 13 4.2.1 RADIATED EMISSION LIMITS 16 4.2.2 TEST PROCEDURE 17 4.2.3 DEVIATION FROM TEST STANDARD 17 4.2.4 TEST SETUP 17 4.2.5 EUT OPERATING CONDITIONS 18 4.2.6 TEST RESULTS 18 5.RADIATED BAND EMISSIONMEASUREMENT 31 5.1 TEST REQUIREMENT: 31 5.2 TEST PROCEDURE 31 5.3 DEVIATION FROM TEST STANDARD 31 5.4 TEST SETUP 32 5.5 EUT OPERATING CONDITIONS 32 5.6 TEST RESULT 33 6.POWER SPECTRAL DENSITY TEST 36 6.1 APPLIED PROCEDURES / LIMIT 36 6.2 TEST PROCEDURE 36 6.3 DEVIATION FROM STANDARD 36 6.4 TEST SETUP 36 6.5 EUT OPERATION CONDITIONS 36 6.6 TEST RESULT 37 Project No.: ZKT-240724L8692E Page 4 of 70 7. CHANNEL BANDWIDTH& 99% OCCUPY BANDWIDTH 46 7.1 APPLIED PROCEDURES / LIMIT 46 7.2 TEST PROCEDURE 46 7.3 DEVIATION FROM STANDARD 46 7.4 TEST SETUP 46 7.5 EUT OPERATION CONDITIONS 46 7.6 TEST RESULT 47 8.PEAK OUTPUT POWER TEST 56 8.1 APPLIED PROCEDURES/LIMIT 56 8.2 TEST PROCEDURE 56 8.3 DEVIATION FROM STANDARD 56 8.4 TEST SETUP 56 8.5 EUT OPERATION CONDITIONS 56 8.6 TEST RESULT 57 9. CONDUCTED BAND EDGE AND SPURIOUS EMISSION 58 9.1 APPLICABLE STANDARD 58 9.2 TEST PROCEDURE 58 9.3 DEVIATION FROM STANDARD 58 9.4 TEST SETUP 58 9.5 EUT OPERATION CONDITIONS 58 9.6 TEST RESULTS 58 10. DUTY CYCLE 66 10.1 APPLIED PROCEDURES / LIMIT 66 10.2 DEVIATION FROM STANDARD 66 10.3 TEST SETUP 66 11. ANTENNA REQUIREMENT 70 12. TEST SETUP PHOTO 70 13. EUT CONSTRUCTIONAL DETAILS 70 Project No.: ZKT-240724L8692E Page 5 of 70 1. VERSION Report No. Version Description Approved ZKT-240724L8692E Rev.01 Initial issue of report Aug.22, 2024 Project No.: ZKT-240724L8692E Page 6 of 70 2. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.247) , Subpart C Standard Section Test Item Result Remark FCC part 15.203/15.247 (c) Antenna requirement PASS FCC part 15.207 AC Power Line Conducted Emission PASS FCC part 15.247 (b)(3) Conducted Peak Output Power PASS FCC part 15.247 (a)(2) Channel Bandwidth& 99% OCB PASS FCC part 15.247 (e) Power Spectral Density PASS FCC part 15.247(d) Band Edge PASS FCC part 15.205/15.209 Spurious Emission PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report Project No.: ZKT-240724L8692E Page 7 of 70 2.1 TEST FACILITY Shenzhen ZKT Technology Co., Ltd. Add. : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China FCC Test Firm Registration Number: 692225 Designation Number: CN1299 IC Registered No.: 27033 CAB identifier: CN0110 2.2 MEASUREMENT UNCERTAINTY The report…

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2.4GHz FPC BUILT-IN ANTENNA TECHNICAL DATA SHEET TX2400-FPC3-5015 1 / 4 Copyright ©2012–2020 ， Chengdu Ebyte Electronic Technology Co.,Ltd. Expert of IoT Antenna Chengdu Ebyte Electronic Technology Co.,Ltd.TX2400-FPC3-5015 datasheet TX2400-FPC3-5015 NO.MECHANICAL SPECIFICATIONSVALUECOMMENT 01Part NumberTX2400-FPC3-5015Omni Antenna 02MaterialFPC 03Connector TypeIPEX-3 04Antenna ColourBlack 05Overall Size50*15mm 06Cable Length120mm Cable Customizable 07Weight1g NO.ELECTRICAL SPECIFICATIONSCOMMENT 01Frequency2.4~2.5GHz 02Antenna Gain 03Radiation type 04PolarizationVertical 05Nominal Impedance 06Max Input Power 077S.W.R. VALUE 2.4GHz 2.0dBi Omnidirectional Linear 50Ω 2W ≤1.5 NO.ENVIRONMENTAL SPECIFICATIONSVALUECOMMENT 01Operation Temperature-30°C～+75°C 02Storage Temperature-30°C～+75°C 03RoHS CompliantYES 2 / 4 Copyright ©2012–2020 ， Chengdu Ebyte Electronic Technology Co.,Ltd. Expert of IoT Antenna Chengdu Ebyte Electronic Technology Co.,Ltd.TX2400-FPC3-5015 datasheet MECHANICAL DRAWING 3 / 4 Copyright ©2012–2020 ， Chengdu Ebyte Electronic Technology Co.,Ltd. Expert of IoT Antenna Chengdu Ebyte Electronic Technology Co.,Ltd.TX2400-FPC3-5015 datasheet S.W.R. 3D &2D Pattern Note: Exposure test in air, data for reference only 4 / 4 Copyright©2012–20 20 ， ChengduEbyteElectronicTechnologyCo.,Ltd. Expertof IoT Antenna ChengduEbyteElectronicTechnologyCo.,Ltd.TX2400-FPC3-5015datasheet About us Technicalsupport:[email protected] DocumentsandRFSettingdownloadlink:www.cdebyte.com ThankyouforusingEbyteproducts!Pleasecontactus withanyquestionsor suggestions:[email protected] ------------------------------------------------------------------------------------------------- Phone：028-61543675 Web:www.cdebyte.com Address:BuildingB2, MouldIndustrialPark,199#Xi-QuAve,WestHigh-techZone,Chengdu,611731,Sichuan,China