2BDL3-B11Thermal Label Printer

Rev 1/26/2023 Xiamen AiYin Technology Co.,Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 04-22-2026 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BDL3-B11 Xiamen AiYin Technology Co.,Ltd. (“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. Xiamen AiYin Technology Co.,Ltd. (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, Signature Aaron zheng Rev 1/26/2023 Xiamen AiYin Technology Co.,Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 04-22-2026 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BDL3-B11 Xiamen AiYin Technology Co.,Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, Signature Aaron zheng

Xiamen AiYin Technology Co.,Ltd. 4th-8th Floor, No.838 Tongfu Road, Tong'an District Xiamen China Date: 2026-04-23 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2BDL3-B11 FRN: 0034490144 US Agent – Attestation Statement / Part 2.911(d)(7) Xiamen AiYin Technology Co.,Ltd. certifies, that as of 2026-04-23, we have designated FCC US Agent, LLC to accept service of process on our behalf for FCC ID: 2BDL3-B11 Xiamen AiYin 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 Xiamen AiYin Technology Co.,Ltd. for FCC ID: 2BDL3-B11 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: Xiamen AiYin Technology Co.,Ltd. Designated Agent: FCC US Agent, LLC Company Representative: Aaron zheng Designated Agent Representative: Tim Payne Signature: Signature:

Xiamen AiYin Technology Co.,Ltd. Date: April 23, 2026 FCC ID: 2BDL3-B11 Model Number: B11, B11 Pro, B11s, B11a, B11b, Q11, Q11 Pro, T11, T11 Pro, C11, C11 Pro, JD-25 To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, Xiamen AiYin Technology Co.,Ltd. declare that this EUT (FCC ID: 2BDL3-B11) will conduct FCC compliance testing, the SDOC part recognized test lab(No. 24 Xinfa East Road, Xiangshan Community, Xinqiao Street, Baoan District, Shenzhen, Guangdong, People's Republic of China) Please contact me if you have any question. Sincerely, (Signed) Name / Title: Aaron zheng / manager Company: Xiamen AiYin Technology Co.,Ltd. Address: 4th-8th Floor, No.838 Tongfu Road, Tong'an District, Xiamen, China

Xiamen AiYin Technology Co.,Ltd. Family models difference declaration Product Name: Thermal Label Printer Trade Name: N/A Model Name: B11 Family Model: B11 Pro, B11s, B11a, B11b, Q11, Q11 Pro, T11, T11 Pro, C11, C11 Pro, JD-25 Difference declaration: We (Xiamen AiYin Technology Co.,Ltd.) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.), same mechanical structure and design (including product enclosure, materials, etc.), the only difference is the model name and color. Regards, Signature Name: Aaron zheng Date: 4/23/2026

\\172.16.20.5\ntek\NTEK\电磁兼容部\RF项目组\RF项目\2026\1月\N26011602208E 厦门爱印科技有限公司 Portable Wireless Label Printer(EDR) B11 FCC ID RF\7. Others\FCC letter\FCC POA Letter.docx Xiamen AiYin Technology Co.,Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 4/23/2026 SUBJECT: FCC Application for FCC ID: 2BDL3-B11 To Whom It May Concern: We, the undersigned, hereby authorize Alex Li at Shenzhen NTEK Testing Technology Co., Ltd. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Shenzhen NTEK Testing Technology Co., Ltd. on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, (signature) (printed name): Aaron zheng

< Xiamen AiYin Technology Co.,Ltd. > Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 4/25/2026 Subject; Request for Confidentiality FCC ID: 2BDL3-B11 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 Operational Description Tune up procedure BOM 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: Aaron zheng Title: manager Email: [email protected]

ATTACHMENT PHOTOGRAPHS OF EXT Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6 Photo 7 Photo 8 END

40*30mm

FCC ID: 2BDL3-B11 Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR 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 When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. BLE: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculation SAR Exclusion threshold SAR test exclusion 2.402 3.18 2.08 3±1 4 1.58 <5 0.49127 3.00 YES 2.440 2.96 1.98 2±1 3 1.58 <5 0.49514 3.00 YES 2.480 1.61 1.45 1±1 2 1.58 <5 0.49918 3.00 YES BLE 1M Conclusion: For the max result :0.50 ≤ 3.0 for 1g SAR, SAR is not required. Signature: Date: 2026-04-09 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

BluetoothAntenna specification&Testreport YichipMicroelectronics ©2014 TestCcompanyTATechnology(Shanghai)Co.,Ltd. TestAddress Building1,No.400,FangchunRoad,China(Shanghai)PilotFreeTradeZone TestDate2020/7/24 TestInstrument KeysightE5071B antennadesignspecification Antennadimensionsasblowpictureshow:thematerialisFR4andthethicknessis 1.6mmofPCB. ANT1: GianandEfficiency Frequency (MHz) Efficiency(%)Gain(dBi) 230013.17-1.57 232019.08-0.76 234022.65-0.41 236022.62-0.12 238018.03-0.42 240014.86-0.93 242012.54-1.17 24409.92-2.03 24607.46-2.47 24806.11-2.98 25005.39-3.83 3Dand1D RadiationPatterns Total Y X 2440MTRP1 Cut1 Max:-2 Min:-16 Scale:2/div 90 0 60 003 180 Angle(? 270 Cut2 Max:0 Min:-22 Scale:2/div 90 0 330 300 240 150 180 Angle(? 270 Max:-2 Min:-14 Scale:2/div 90 Cut3 0 330 300 240 210 180 Angle(? 270 120 30 60 -15 -10 30 0 150 210 60 120 -5 -20 -25 150 30 240 210 330 120 Azimuth=0.0 Elevation=0.0 Roll=0.0 Z ANT2: GianandEfficiency Frequency (MHz) Efficiency(%)Gain(dBi) 230028.41-1.40 232038.63-0.11 234042.820.36 236047.040.41 238047.390.58 240053.310.73 242063.692.10 244066.142.52 246064.612.72 248063.932.79 250065.002.97 252060.032.90 254058.273.12 3Dand1DRadiationPatterns Total -20 -15 -10 -5 0 5 Azimuth=0.0 Y Z Elevation=0.0 Roll=0.0 X Cut1 Max:3 Min:-7 Scale:1/div 90 0 330 300 120 150 180 Angle(? 270 Cut2 Max:4 Min:-16 Scale:2/div 90 0 30060 180 Angle(? 270 Max:4 Min:-10 Scale:2/div 90 Cut3 0 330 300 240 210 180 Angle(? 270 30 60 150 120 210 120 30 240 330 150 2 60 30 210 40 ANT3 GianandEfficiency Frequency (MHz) Efficiency(%)Gain(dBi) 228033.540.70 230027.85-0.04 232029.010.44 234026.230.07 236024.64-0.83 238022.00-1.24 240024.76-1.52 242031.570.20 244038.130.87 246039.981.04 248041.931.30 250045.601.66 252044.012.12 254043.242.24 3Dand1DRadiationPatterns Total -12 -8 -4 4 0 Azimuth=0.0 Y Z X Elevation=0.0 Roll=0.0 Cut1 Max:0 Min:-12 Scale:2/div 90 0 30060 180 Angle(? 270 Max:0 Min:-12 Scale:2/div Max:3 Min:-8 Scale:1/div Cut2 90 0 330 300 240 210 270 90 180 Angle(? Cut3 0 180 Angle(? 270 30060 210 240 150 30 150 30 120 60 120 330 210 240120 150 33030 ANT4: GianandEfficiency Frequency (MHz) Efficiency(%)Gain(dBi) 230043.362.00 232047.262.58 234045.702.08 236046.131.08 238044.941.76 240047.462.08 242053.662.83 244054.073.01 246049.873.01 248046.802.73 250046.672.44 252041.751.76 254039.781.30 3Dand1DRadiationPatterns Total -10 -15 10 -5 0 5 Azimuth=0.0 Y ZX Elevation=0.0 Roll=0.0 Cut1 Max:6 Min:-10 Scale:2/div 90 0 330 300 240 210 150 120 60 30 180 Angle(? 270 Cut2 Max:4 Min:-14 Scale:2/div 90 0 30060 180 Angle(? 270 Max:8 Min:-8 Scale:2/div 90 Cut3 0 330 300 240 210 180 Angle(? 270 120 210 30 120 150 150 240 60 30 330 ANT5: GianandEfficiency Frequency (MHz) Efficiency(%)Gain(dBi) 230034.81-0.14 232038.900.50 234038.951.16 236040.111.28 238039.281.80 240041.772.20 242049.712.34 244050.232.58 246045.912.45 248042.462.09 250041.102.01 252035.580.96 254032.430.44 3Dand1DRadiationPatterns Total -10 -15 10 -5 0 5 Azimuth=0.0 Y Z Elevation=0.0 Roll=0.0 X Cut1 Max:5 Min:-5 Scale:1/div 90 0 300 60 180 Angle(? 270 Cut2 Max:4 Min:-16 Scale:2/div 90 0 180 Angle(? 270 Max:6 Min:-6 Scale:2/div 90 Cut3 0 330 300 240 210 180 Angle(? 270 60300 330 60 30 120 150 120 210150 240 30 150 30 240120 330 210 ANT6： GianandEfficiency Frequency (MHz) Efficiency(%)Gain(dBi) 230042.680.78 232046.241.56 234044.622.23 236044.442.69 238042.813.27 240046.293.85 242056.894.41 244060.274.33 246057.593.73 248055.543.66 250056.504.05 252050.263.52 254047.763.49 3Dand1DRadiationPatterns Total -10 -14 -6 -2 2 8 Azimuth=0.0 Y Z X Elevation=0.0 Roll=0.0 Cut1 Max:6 Min:-12 Scale:2/div 90 0 300 60 180 Angle(? 270 Max:6 Min:-14 Scale:2/div 90 Cut2 0 330 300 240 210 180 Angle(? 270 Max:6 Min:-8 Scale:2/div 90 Cut3 0 330 300 240 210 180 Angle(? 270 33030 120 30 150 30 150 120 60 60 120 210150 240 ANT7: GianandEfficiency Frequency (MHz) Efficiency(%)Gain(dBi) 230051.442.59 232058.823.33 234057.603.39 236055.643.16 238048.672.63 240047.272.25 242051.452.14 244054.402.19 246056.942.51 248060.413.02 250064.593.26 252063.593.50 254064.523.71 3Dand1DRadiationPatterns Total -10 -15 -20 10 -5 0 5 Azimuth=0.0 Y Z Elevation=0.0 Roll=0.0 X Cut1 Max:6 Min:-10 Scale:2/div 90 0 330 300 240 210 120 150 60 30 180 Angle(? 270 Max:4 Min:-12 Scale:2/div Max:4 Min:-12 Scale:2/div Cut2 90 0 30600 180 270 90 Angle(? Cut3 0 330 300 2 210 180 Angle(? 270 30 60 150 120 150 120 40 240 30 210 330 ANT8: GianandEfficiency Frequency (MHz) Efficiency(%)Gain(dBi) 230012.77-2.33 232020.15-0.40 234025.710.95 236030.321.59 238030.901.63 240033.262.52 242038.933.55 244038.733.34 246036.322.93 248035.232.87 250035.822.53 252033.021.93 254031.621.42 3Dand1DRadiationPatterns Total Azimuth=0.0 Y Z Elevation=0.0 Roll=0.0 X 4 -2 -6 -10 -14 Max:4 Min:-4 Scale:1/div Max:4 Min:-10 Scale:2/div Max:3 Min:-7 Scale:1/div Cut1 90 0 240120 180 270 90 Angle(? Cut2 0 330 300 240 210 180 Angle(? 270 90 Cut3 0 330 300 240 210 180 Angle(? 270 60300 30 120 330 30 150210 150 120 60 60 150 30 ANT1-ANT85dbmTRPtestresult： Band ANT Frequency Result (dBm) Note BT ANT12440 -6.50 1 ANT22440 -0.582 ANT32440 -2.913 ANT42440 0.924 ANT52440 0.095 ANT62440 0.346 ANT72440 0.147 ANT82440 -2.148

Report No.: N26011602208E Version.1.3 Page 1 of 41 RADIO TEST REPORT FCC ID: 2BDL3-B11 Product: Thermal Label Printer Trade Mark: N/A Model No.: B11 Family Model: B11 Pro, B11s, B11a, B11b, Q11, Q11 Pro, T11, T11 Pro, C11, C11 Pro, JD-25 Report No.: N26011602208E Issue Date: Apr. 09, 2026 Prepared for Xiamen AiYin Technology Co.,Ltd. 4th-8th Floor, No.838 Tongfu Road, Tong'an District, Xiamen, 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.: N26011602208E Version.1.3 Page 2 of 41 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 Te s t R e s u l ts ................................................................................................................................................ 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 Te s t R e s u l ts ................................................................................................................................................ 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 Te s t S e t u p .................................................................................................................................................. 26 7.3.5 Test Procedure ........................................................................................................................................... 26 7.3.6 Te s t R e s u l ts ................................................................................................................................................ 26 7.4 DUTY CYCLE ......................…

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