2A359-CT221DLable Printer

The device can be used in portable exposure condition without restriction.

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): CT221D 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: 2022.11.09 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 09, 2022 Subject; Request for Confidentiality FCC ID: 2A359-CT221D 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

EUT PHOTO(External Photos) FCC ID: 2A359-CT221D

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-CT221D BT ANT ※※※※※ END OF REPORT ※※※※※

FCC ID: 2A359-CT221D 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, The device can be used in portable exposure condition without restriction, and keep at least 5mm away from the device when using it For BLE Max Conducted Power(dBm) Tune-up Power(dBm) Max Tune-up Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit -2.02 -3(±1) -2 0.631 2402 5 0.195589 3.0 So a SAR test is not required

Report No: SSP22100085A 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: CT221D Report No.: SSP22100085A Tested Date: 2022-10-27 Issued Date: 2022-10-28 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: SSP22100085A 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.: CT221D 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: SSP22100085A Antenna Test Report Page 3 of 4 2. OTA Test 2.1 Gain Frequency Peak Gain (dBi) Polarity 2402MHz 0 Horizontal 2402MHz -0.62 Vertical 2442MHz -0.86 Horizontal 2442MHz -1.11 Vertical 2480MHz -1.56 Horizontal 2480MHz -1.97 Vertical 2.2 Radiation Pattern View Report No: SSP22100085A Antenna Test Report Page 4 of 4

Project No.: ZKT-221103L8193E Page 1 of 41 FCC TEST REPORT FCC ID: 2A359-CT221D Report Number. ................................ : ZKT-221103L8193E Date of Test ........................................ November 07, 2022 to November 11, 2022 Date of issue .................................... : November 18, 2022 Total number of pages ...................... 41 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 ......................... : Shenzhen Dudian Technology Co., Ltd. Address .......................................... : 1101, Building 3, COFCO Chuangzhi Factory, No. 67 District, Xingdong, Xin'an, Bao'an, Shenzhen, Guangdong, China Manufacturer's name ................... : Shenzhen Dudian Technology Co., Ltd. Address .......................................... : 1101, Building 3, COFCO Chuangzhi Factory, No. 67 District, Xingdong, Xin'an, Bao'an, Shenzhen, Guangdong, 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-111_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 ................................. : Lable Printer Trademark ...................................... : -- Model/Type reference......................: CT221D Ratings ............................................. : DC 9V by Adapter Project No.: ZKT-221103L8193E Page 2 of 41 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-221103L8193E Page 3 of 41 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 10 3.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 10 3.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 10 3.5 EQUIPMENTS LIST FOR ALL TEST ITEMS 11 4. EMC EMISSION TEST 13 4.1 CONDUCTED EMISSION MEASUREMENT 13 4.1.1 POWER LINE CONDUCTED EMISSION LIMITS 13 4.1.2 TEST PROCEDURE 13 4.1.3 DEVIATION FROM TEST STANDARD 13 4.1.4 TEST SETUP 14 4.1.5 EUT OPERATING CONDITIONS 14 4.1.6 TEST RESULT 15 4.2 RADIATED EMISSION MEASUREMENT 17 4.2.1 RADIATED EMISSION LIMITS 17 4.2.2 TEST PROCEDURE 18 4.2.3 DEVIATION FROM TEST STANDARD 18 4.2.4 TEST SETUP 18 4.2.5 EUT OPERATING CONDITIONS 19 4.2.6 TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 19 5.RADIATED BAND EMISSION MEASUREMENT 24 5.1 TEST REQUIREMENT: 24 5.2 TEST PROCEDURE 24 5.3 DEVIATION FROM TEST STANDARD 24 5.4 TEST SETUP 25 5.5 EUT OPERATING CONDITIONS 25 5.6 TEST RESULT 26 6.POWER SPECTRAL DENSITY TEST 27 6.1 APPLIED PROCEDURES / LIMIT 27 6.2 TEST PROCEDURE 27 6.3 DEVIATION FROM STANDARD 27 Project No.: ZKT-221103L8193E Page 4 of 41 Table of Contents Page 6.4 TEST SETUP 27 6.5 EUT OPERATION CONDITIONS 27 6.6 TEST RESULT 28 7. CHANNEL BANDWIDTH 30 7.1 APPLIED PROCEDURES / LIMIT 30 7.2 TEST PROCEDURE 30 7.3 DEVIATION FROM STANDARD 30 7.4 TEST SETUP 30 7.5 EUT OPERATION CONDITIONS 30 7.6 TEST RESULT 31 8.PEAK OUTPUT POWER TEST 35 8.1 APPLIED PROCEDURES / LIMIT 35 8.2 TEST PROCEDURE 35 8.3 DEVIATION FROM STANDARD 35 8.4 TEST SETUP 35 8.5 EUT OPERATION CONDITIONS 35 8.6 TEST RESULT 36 9. CONDUCTED BAND EDGE AND SPURIOUS EMISSION 37 9.1 APPLICABLE STANDARD 37 9.2 TEST PROCEDURE 37 9.3 DEVIATION FROM STANDARD 37 9.4 TEST SETUP 37 9.5 EUT OPERATION CONDITIONS 37 10.ANTENNA REQUIREMENT 40 11. TEST SETUP PHOTO 41 12. EUT CONSTRUCTIONAL DETAILS 41 Project No.: ZKT-221103L8193E Page 5 of 41 1.VERSION Report No. Version Description Approved ZKT-221103L8193E Rev.01 Initial issue of report November 18, 2022 Project No.: ZKT-221103L8193E Page 6 of 41 2. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.247), Subpart C Standard Section Test Item Judgment 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-221103L8193E Page 7 of 41 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 2.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U，where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of …

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EUT TEST PHOTO FCC ID: 2A359-CT221D Radiated band emission (30MHz-1GHz): Conducted emission: Radiated band emission (Above 1GHz):