2A359-CT230BLable Printer

• Specification Print technolo窃 Thermal printing Print resolution 300dpi Print speed 50mm/s (max.) Media type Continuous paper, gap paper Label width 20-58mm Communication type USB, Bluetooth Printer language TSPL, ESC/POS Power input Output, DC 5V=2A Supported operating system Android 6, i0S10, Windows XP, and Above Storage temperature -40~60 ° C (-40~ 140 ° F) Operating temperature 0 - 40 ° C (41 ~ 104 ° F) Shenzhen Dudian Technology Co., Ltd 1101, Building 3, COFCO Chuangzhi Factory, No. 67 D istrict, Xingdong, Xin'an, Bao'an, Shenzhen, Guangdong, China Made in China FCC Warning This device complies with Part 15 of the FCC Rules. Operation is sub」ectto 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. NOTE 1: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause ha「mfulinterference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following 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 the receiver is connected -Consult the dealer or an experienced radio/TV technician for help. NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could voi d the user's authorit y to operate the equipment. Th e device has been evaluated to meet general RF exposure requirement. The device type is portable. Keep a distance of at least 5mm when using this product

Shenzhen Dudian Technology Co., Ltd. Agent Authorization Company: Shenzhen Dudian Technology Co., Ltd. Address: 1101, Building 3, COFCO Chuangzhi Factory, No. 67 District, Xingdong, Xin'an, Bao'an, Shenzhen, Guangdong, China Product Name: Lable Printer Model Number(s): CT230B, CT221D, CT321D, K21A, K21B, K21C, K31A, K31B, K31C, F31, F32, F33, F34, F35, F36 Product Description: Lable Printer 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: 2022.11.01 Name: Qi Liu Title: Purchasing manager Company: Shenzhen Dudian Technology Co., Ltd.

Shenzhen Dudian Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: November 01, 2022 Subject; Request for Confidentiality FCC ID: 2A359-CT230B 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: Qi Liu Title: Purchasing manager

Shenzhen Dudian Technology Co., Ltd. Model Difference Statement Dear Sir/Madam, Added models CT221D, CT321D, K21A, K21B, K21C, K31A, K31B, K31C, F31, F32, F33, F34, F35, F36 basis of the original product CT230B. These models color of appearance and model names are different, but the circuit and the electronic construction are the same. Sincerely, Name: Q i L iu Title: Purchasing manager Company name: Shenzhen Dudian Technology Co., Ltd. Address: 1101, Building 3, COFCO Chuangzhi Factory, No. 67 District, Xingdong, Xin'an, Bao'an, Shenzhen, Guangdong, China

EUT PHOTO(External Photos) FCC ID: 2A359-CT230B

Page 1 of 1 Label and Information FCC Label Sample FCC Label Specifications Text is Black in color and is justified. Labels are printed in indelible ink on permanent adhesive backing or silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Where the EUT is constructed in two or more sections connected by wires and marketed together, the above statement is required to be affixed only to the main control unit. When the EUT is so small or for such use that it is not practicable to place the statement on it, the above information shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. FCC Label Location

EUT PHOTO(Internal Photos) FCC ID: 2A359-CT230B BT ANT ※※※※※ END OF REPORT ※※※※※

FCC ID: 2A359-CT230B RF Exposure Evaluation According to KDB 447498 D01 General RF Exposure Guidance v06 and part 2.1093， Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 Here, For BT Max Conducted Power(dBm) Tune-up Power(dBm) Max Tune-up Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit -0.75 0(±1) 1 1.259 2440 5 0.393324 3.0 So a SAR test is not required

Report No: SSP22100064A Antenna Test Report Page 1 of 4 Antenna Test Report Test Standard: IEEE 149-1979 Manufacturer: Shenzhen Dudian Technology Co., Ltd. Product Name: 2.4GHz Antenna Model: CT230B Report No.: SSP22100064A Tested Date: 2022-10-21 Issued Date: 2022-10-22 Tested By: William Liu (Engineer) Approved By: Lahm Peng (Manager) Prepared By: Shenzhen ZRLK Testing Technology Co., Ltd. 1F, No. 35 Building, Changxing Technology Industrial Park, Yutang Street, Guangming New District, Shenzhen City, Guangdong Province, China Tel.: +86-755-33019599 Fax.: +86-755-33019599 Website: www.zrlklab.com Note: This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen ZRLK Testing Technology Co., Ltd. Report No: SSP22100064A Antenna Test Report Page 2 of 4 1. General Information 1.1 Product Information Manufacturer Manufacturer: Shenzhen Dudian Technology Co., Ltd. Address of Manufacturer: 1101, Building 3, COFCO Chuangzhi Factory, No. 67 District, Xingdong, Xin'an, Bao'an, Shenzhen, Guangdong, China General Description of Antenna Product Name: 2.4GHz Antenna Model No.: CT230B Frequency Range: 2400MHz-2483.5MHz Type of Antenna: PCB Antenna Antenna Gain: 0dBi (Max.) Impedance: 50 ohm Antenna View (15mm*6mm) 1.2 Test Methodology All measurements contained in this report were conducted with standards IEEE 149-1979 for IEEE Standard Test Procedures for Antennas. 1.3 Test Facilities Testing Lab: Shenzhen ZRLK Testing Technology Co., Ltd. All measurement facilities used to collect the measurement data are located at 1F, No. 35 Building, Changxing Technology Industrial Park, Yutang Street, Guangming New District, Shenzhen City, Guangdong Province, China Report No: SSP22100064A Antenna Test Report Page 3 of 4 2. OTA Test 2.1 Gain Frequency Peak Gain (dBi) Polarity 2402MHz 0 Horizontal 2402MHz -0.65 Vertical 2442MHz -0.3 Horizontal 2442MHz -1.1 Vertical 2480MHz -0.45 Horizontal 2480MHz -1.03 Vertical 2.2 Radiation Pattern View Report No: SSP22100064A Antenna Test Report Page 4 of 4

ProjectNo.:ZKT-221028L8025E Page 1 of 41 FCCTESTREPORT FCCID:2A359-CT230B ReportNumber. .................................... : ZKT-221028L8025E DateofTest ....................................................... : October25,2022toOctober28,2022 Dateofissue ......................................... : November04,2022 Totalnumberofpages .......................... 41 TestResult..........................................: PASS TestingLaboratory............................: ShenzhenZKTTechnologyCo.,Ltd. Address...............................................: 1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China Applicant'sname.............................: ShenzhenDudianTechnologyCo.,Ltd. Address...............................................: 1101,Building3,COFCOChuangzhiFactory,No.67District, Xingdong,Xin'an,Bao'an,Shenzhen,Guangdong,China Manufacturer'sname......................: ShenzhenDudianTechnologyCo.,Ltd. Address ............................................... : 1101,Building3,COFCOChuangzhiFactory,No.67District, Xingdong,Xin'an,Bao'an,Shenzhen,Guangdong,China Testspecification: Standard................................................: FCCCFRTitle47Part15SubpartCSection15.247 ANSIC63.10:2013 Testprocedure ..................................... : / Non-standardtestmethod ................ :N/A TestReportFormNo........................: TRF-EL-111_V0 TestReportForm(s)Originator.....: ZKTTesting MasterTRF........................................: Dated:2020-01-06 ThisdevicedescribedabovehasbeentestedbyZKT,andthetestresultsshowthattheequipmentunder test(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZKT,thisdocumentmay bealteredorrevisedbyZKT,personalonly,andshallbenotedintherevisionofthedocument. Productname.....................................:LablePrinter Trademark...........................................:-- Model/Typereference......................:CT230B,CT221D,CT321D,K21A,K21B,K21C,K31A,K31B, K31C,F31,F32,F33,F34,F35,F36 Ratings .................................................. : DC7.4Vbybattery,USB5VCharing Note:Thecolorofappearanceandmodelnameofseriesmodelslistedaredifferentfromthemainmodel, butthecircuitandtheelectronicconstructionarethesame,declaredbythemanufacturer. ProjectNo.:ZKT-221028L8025E Page 2 of 41 Testingprocedureandtestinglocation: TestingLaboratory.......................................:ShenzhenZKTTechnologyCo.,Ltd. Address............................................................:1/F,No.101,BuildingB,No.6,TangweiCommunity IndustrialAvenue,FuhaiStreet,Bao'anDistrict, Shenzhen,China JimLiu Testedby(name+signature) ....................... : TomZou Reviewer(name+signature).......................: LakeXie Approved(name+signature).......................: ProjectNo.:ZKT-221028L8025E Page 3 of 41 TableofContents Page 1.VERSION5 2.SUMMARYOFTESTRESULTS6 2.1TESTFACILITY7 2.2MEASUREMENTUNCERTAINTY7 3.GENERALINFORMATION8 3.1GENERALDESCRIPTIONOFEUT8 3.2DESCRIPTIONOFTESTMODES10 3.3BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED10 3.4DESCRIPTIONOFSUPPORTUNITS(CONDUCTEDMODE)10 3.5EQUIPMENTSLISTFORALLTESTITEMS11 4.EMCEMISSIONTEST13 4.1CONDUCTEDEMISSIONMEASUREMENT13 4.1.1POWERLINECONDUCTEDEMISSIONLIMITS13 4.1.2TESTPROCEDURE13 4.1.3DEVIATIONFROMTESTSTANDARD13 4.1.4TESTSETUP14 4.1.5EUTOPERATINGCONDITIONS14 4.1.6TESTRESULT15 4.2RADIATEDEMISSIONMEASUREMENT17 4.2.1RADIATEDEMISSIONLIMITS17 4.2.2TESTPROCEDURE18 4.2.3DEVIATIONFROMTESTSTANDARD18 4.2.4TESTSETUP18 4.2.5EUTOPERATINGCONDITIONS19 4.2.6TESTRESULTS(BETWEEN9KHZ–30MHZ)19 5.RADIATEDBANDEMISSIONMEASUREMENT24 5.1TESTREQUIREMENT:24 5.2TESTPROCEDURE24 5.3DEVIATIONFROMTESTSTANDARD24 5.4TESTSETUP25 5.5EUTOPERATINGCONDITIONS25 5.6TESTRESULT26 6.POWERSPECTRALDENSITYTEST27 6.1APPLIEDPROCEDURES/LIMIT27 6.2TESTPROCEDURE27 6.3DEVIATIONFROMSTANDARD27 ProjectNo.:ZKT-221028L8025E Page 4 of 41 TableofContentsPage 6.4TESTSETUP27 6.5EUTOPERATIONCONDITIONS27 6.6TESTRESULT28 7.CHANNELBANDWIDTH30 7.1APPLIEDPROCEDURES/LIMIT30 7.2TESTPROCEDURE30 7.3DEVIATIONFROMSTANDARD30 7.4TESTSETUP30 7.5EUTOPERATIONCONDITIONS30 7.6TESTRESULT31 8.PEAKOUTPUTPOWERTEST35 8.1APPLIEDPROCEDURES/LIMIT35 8.2TESTPROCEDURE35 8.3DEVIATIONFROMSTANDARD35 8.4TESTSETUP35 8.5EUTOPERATIONCONDITIONS35 8.6TESTRESULT36 9.CONDUCTEDBANDEDGEANDSPURIOUSEMISSION37 9.1APPLICABLESTANDARD37 9.2TESTPROCEDURE37 9.3DEVIATIONFROMSTANDARD37 9.4TESTSETUP37 9.5EUTOPERATIONCONDITIONS37 10.ANTENNAREQUIREMENT40 11.TESTSETUPPHOTO41 12.EUTCONSTRUCTIONALDETAILS41 ProjectNo.:ZKT-221028L8025E Page 5 of 41 1.VERSION ReportNo.VersionDescriptionApproved ZKT-221028L8025ERev.01InitialissueofreportNovember04,2022 ProjectNo.:ZKT-221028L8025E Page 6 of 41 2.SUMMARYOFTESTRESULTS Testproceduresaccordingtothetechnicalstandards: FCCPart15(15.247),SubpartC Standard Section TestItemJudgmentRemark FCCpart15.203/15.247 (c) AntennarequirementPASS FCCpart15.207ACPowerLineConductedEmissionPASS FCCpart15.247(b)(3)ConductedPeakOutputPowerPASS FCCpart15.247(a)(2)ChannelBandwidth&99%OCBPASS FCCpart15.247(e)PowerSpectralDensityPASS FCCpart15.247(d)BandEdgePASS FCCpart15.205/15.209SpuriousEmissionPASS NOTE: (1)“N/A”denotestestisnotapplicableinthisTestReport ProjectNo.:ZKT-221028L8025E Page 7 of 41 2.1TESTFACILITY ShenzhenZKTTechnologyCo.,Ltd. Add.:1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrialAvenue,FuhaiStreet,Bao'an District,Shenzhen,China FCCTestFirmRegistrationNumber:692225 DesignationNumber:CN1299 ICRegisteredNo.:27033 2.2MEASUREMENTUNCERTAINTY Thereporteduncertaintyofmeasurementy±U ， whereexpendeduncertaintyUisbasedonastandard uncertaintymultipliedbyacoveragefactorofk=2 ， providingalevelofconfidenceofapproximately95 % 。 No.ItemUncertainty 1 3mcamberRadiatedspurious emission(9KHz-30MHz) U=4.5dB 2 3mcamberRadiatedspurious emission(30MHz-1GHz) U=4.8dB 3 3mchamberRadiatedspurious emission(1GHz-6GHz) U=4.9dB 4 3mchamberRadiatedspurious emission(6GHz-40GHz) U=5.0…

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EUT TEST PHOTO FCC ID: 2A359-CT230B Radiated emission (30MHz-1GHz)： Conducted emission： Radiated band emission (Above 1GHz)：