2BAYT-RYBD14R02Laptop

Warning ..tatementThis device complies with part 15 of the FCC Rules. Operation is subject to thefollowing two conditions: (1) This device may not cause harmful interference, and (2)this device must accept any interference received, including interference that may causeundesired operation.Any Changes or modifications not expressly approved by the party responsible forcompliance could void the user's authority to operate the equipment.Note: This equipment has been tested and found to comply with the limits for a Class Bdigital device, pursuant to part 15 of the FCC Rules. These limits are designed toprovide reasonable protection against harmful interference in a residential installation.This equipment generates uses and can radiate radio frequency energy and, if notinstalled and used in accordance with the instructions, may cause harmful interferenceto radio communications. However, there is no guarantee that interference will notoccur in a particular installation. If this equipment does cause harmful interference toradio or television reception, which can be determined by turning the equipment off andon, the user is encouraged to try to correct the interference by one or more of thefollowing measures:-Reorient or relocate the receiving antenna.-Increase the separation between the equipment and receiver.-Connect the equipment into an outlet on a circuit different from that to which thereceiver is connected.-Consult the dealer or an experienced radio/TV technician for help.The device has been evaluated to meet general RF exposure requirement. The devicecan be used in portable exposure condition without restriction.

Zhejiang Ruiyi Intelligent Technology Co., LTD (2023-5-23) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID:2BAYT- RYBD14R02) Zhejiang Ruiyi Intelligent Technology Co., LTD 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. Sincerely, (Applicant signature): (Applicant printed name): Soupin Huang Zhejiang Ruiyi Intelligent Technology Co., LTD (2023-5-23) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID:2BAYT- RYBD14R02) Zhejiang Ruiyi Intelligent Technology Co., LTD certifies 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. Sincerely, (Applicant signature): (Applicant printed name): Soupin Huang

Zhejiang Ruiyi Intelligent Technology Co., LTD Family models declaration letter. 2023-05-23 We Zhejiang Ruiyi Intelligent Technology Co., LTD Of No.77 Jingshi Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province Product: Laptop Model Name: RYBD-14R02 Serial Model: RYBD-14i01,RYBD-14i02,RYBD-14i03,RYBD-14i04,RYBD-14i05,RYBD-14i06,R YBD-14i07,RYBD-14i08,RYBD-14i09,RYBD-14i10,RYBD-14R01,RYBD-14R03, RYBD-14R04,RYBD-14R05,RYBD-14R06,RYBD-14R07,RYBD-14R08,RYBD-14 R09,RYBD-14R10 All the model are the same circuit and RF module,except model names. Thanks Sincerely, Signature Name: Soupin Huang Date: 2023-05-23 Title: Manager

1/1 USAgentforServiceofProcessLETTEROFATTESTATION TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USAgentforServiceofProcess: CompanyName:StoneTradingLimited FRN:0033401936 ContactName:DongmeiFang Address:6547NAcademyBlvd#2266,ColoradoSprings,CO80918,UnitedStates TelephoneNo:+12134573118 Email:[email protected] Applicant: Companyname:ZhejiangRuiyiIntelligentTechnologyCo.,LTD ProductDescription:Laptop Granteecode:2BAYT FCCID:2BAYT-RYBD14R02 ContactName:SoupinHuang Address:No.77JingshiRoad,YueqingEconomicDevelopmentZone,YueqingCity,Wenzhou City,ZhejiangProvince TelephoneNo:+860577-61588610 Email:[email protected] [ShenzheniDEEBOTechnologyCo.,Ltd.]certifiesthat,asofthedateofthisfilingof theapplicationwiththeTCB,[StoneTradingLimited]isourdesignatedUSagent forserviceofprocessfortheabovereferencedFCCID.[ShenzheniDEEBO TechnologyCo.,Ltd.]acceptstomaintainanagentfornolessthanoneyearafter thegranteehasterminatedallmarketingandimportationortheconclusionof anycommissionrelatedproceedinginvolvingequipment.[StoneTradingLimited] accepts,asofthedateofthefilingoftheapplication,theobligationofthe designatedUSagentforserviceofprocessfortheabovereferenceFCCID. TheUSAgentforServiceofProcessisawareofandagreestocomplywiththerequirements outlinedintheFCCEquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause §2.911. TheApplicantisawareofandagreestocomplywiththerequirementsoutlinedintheFCC EquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause§2.911. Date:2023/05/29 Applicant’sName:SoupinHuangUSAgent’sName:DongmeiFang Title:managerTitle:Manager SignatureSignature

Zhejiang Ruiyi Intelligent Technology Co., LTD Agent Authorization Letter (2023/05/23) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen ZKT Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Client’s signature : Client’s name / title : Soupin Huang / Manager Contact information / address: No.77 Jingshi Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province

Zhejiang Ruiyi Intelligent Technology Co., LTD Long Term Confidentiality Request Letter (2023-05-23) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR(Laptop / RYBD-14R02,RYBD- 14i01,RYBD-14i02,RYBD-14i03,RYBD-14i04,RYBD-14i05,RYBD-14i06,RYBD- 14i07,RYBD-14i08,RYBD-14i09,RYBD-14i10,RYBD-14R01,RYBD-14R03,RYBD- 14R04,RYBD-14R05,RYBD-14R06,RYBD-14R07,RYBD-14R08,RYBD- 14R09,RYBD-14R10 / FCC ID:2BAYT-RYBD14R02) To Whom It May Concern: - This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - - Block Diagram - Schematics - Operational Description - SOFTWARE SECURITY REQUIREMENTS FOR U-NII DEVICES required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature : Client’s name / title : Soupin Huang / Manager Contact information / address: No.77 Jingshi Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province

4cm Model: RYBD-14R02 FCC ID: 2BAYT-RYBD14R02 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 causeundesired operation. Label Location 2 cm

2.4G WIFI+5G WIFI ANT

FCC ID:2BAYT-RYBD14R02 RF EXPOSURE EVALUATION METHOD SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR,where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. FCC ID:2BAYT-RYBD14R02 2.4GWIFI frequency Maximum Peak Conducted Output Power Max Antenna Gain GHz dBm dBi 2412 8.319 1.92 2437 8.508 1.92 2462 8.477 1.92 5GWIFI frequency Maximum Peak Conducted Output Power Max Antenna Gain GHz dBm dBi 5745 6.31 1.60 5785 6.50 1.60 5825 6.47 1.60 IEEE 802.11b max possible output power (PK,conducted)：8±1dbm 1.92dBi logarithmic terms convert to numeric result is nearly 1.56 9dbm=7.94mW 2412MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=7.94/5*√2.412=2.46≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. 2437MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation FCC ID:2BAYT-RYBD14R02 distance,mm)] · [√f(GHz)]= 7.94/5*√2.437=2.47≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. 2462MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 7.94/5*√2.462=2.49≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. FCC ID:2BAYT-RYBD14R02 IEEE 802.11a max possible output power (PK,conducted)：6±1dbm 1.60dBi logarithmic terms convert to numeric result is nearly 1.45 7dbm=5.01mW 5745MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=5.01/5*√5.745=2.40≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. 2437MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 5.01/5*√5.785=2.41≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. 2462MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 5.01/5*√5.825=2.42≤3.0 FCC ID:2BAYT-RYBD14R02 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. Conclusion: No SAR is required.

1 / 6 2.4-2.5/5.15~5.85 GHz WIFI Antenna L=260mm specification&Test report @2022.07.28 DONGGUAN CITY SLEing INTEL-TECH 2 / 6 Test Ccompany DONGGUAN CITY SLEing INTEL-TECH Test Address 402, Building 6, Modern Enterprise Accelerator, No. 24, Gongye East Road, Songshan Lake, Dongguan, Guangdong, China Test Date 2022/7/28 Test Instrument Keysight E5071B antenna design specification Antenna dimensions as blow picture show: the material is FR4 and the thickness is 0.6mm of FPCB. ANT: 3 / 6 WIFI ANTENNA 4 / 6 Test Setup NFC-500S 3D Chamber Coordinate System Definition Configuration of 3D Chamber 5 / 6 TEST EFFICENCY 6 / 6

Project No.:ZKT-230421L2918E-2 Page 1 of 59 FCC TEST REPORT FCC ID:2BAYT-RYBD14R02 Report Number. .............................. : ZKT-230421L2918E-2 Date of Test ................................................. : Apr. 17, 2023 to Apr.28, 2023 Date of issue .................................... : Apr.28, 2023 Total number of pages ...................... 59 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 ......................... : Zhejiang Ruiyi Intelligent Technology Co., LTD Address .......................................... : No.77 Jingshi Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province Manufacturer's name ................... : Zhejiang Ruiyi Intelligent Technology Co., LTD Address .......................................... : No.77 Jingshi Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province 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: 2023-01-05 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 ................................. : Laptop Trademark ...................................... : E-bayfan Model/Type reference ...................... : RYBD-14R02( Series model reference page 9) Ratings ............................................. : AC100-240V,50/60Hz Project No.:ZKT-230421L2918E-2 Page 2 of 59 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 Alen He Tested by (name + signature) .................... : Joe Liu Reviewer (name + signature) ..................... : Lake Xie Approved (name + signature) .................... : Project No.:ZKT-230421L2918E-2 Page 3 of 59 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 .................................................................. 11 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 4.1.6 TEST RESULT ....................................................................................................... 14 4.2 RADIATED EMISSION MEASUREMENT ...................................................................... 16 4.2.1 RADIATED EMISSION LIMITS .............................................................................. 16 4.2.2 TEST PROCEDURE .............................................................................................. 16 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 .................................................................................................... 19 5.RADIATED BAND EMISSIONMEASUREMENT ........................................................ 30 5.1 TEST REQUIREMENT: .................................................................................................. 30 5.2 TEST PROCEDURE .........................................…

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Test Setup Photograph Radiated Emissions Test Setup Below 1G Above 1G Conduction Emissions Test Setup