2A359-CT221BLabel Printer

Label Printer Quick Installation Guide UNPACKING CHECKLIST Printer Data cableInstallation Guide Installation Paper bin cover COMPONENTS Power Switch Paper Loading Reel Indicator Light Rubber Roller Printhead USB connector Reset button LABEL INSTALLATION GUIDE force bearing point force bearing point thermosensitive 1. Pinch the force points on both sides with your fingers and pull them up to open the paper bin cover. 2. Install the label paper as shown in the following figure. ① Push the paper card lock switch to OPEN state ② Put the label paper into the paper bin, close to the left ③ Push the paper holder to the left until the label is tightly attached ④ Push the locking switch of the paper card to CLOSE and lock it 3. Pull out part of the label paper and close the bin cover. Make sure both sides of the bin cover are closed. KEY FUNCTION Operation methodfunction Start UpHold down the power button for 2 seconds Hold down the power button for 2 seconds Double-click the power button when the paper is loaded correctly and the machine is turned on Click the power button when the paper is properly loaded and powered on Shutdown Print self- test page One piece of paper During printing, click the power button to pause printing Pause printing In a paused printing state, click the power button to continue printing Continue printing Status DescriptionClassification Bluetooth status light Abnormal status light Charging status light Indicator light Blue Light Bluetooth not connected Bluetooth is connected The top cover is not closed, the paper bin is out of paper, the print head temperature is too high Low battery, please charge Charging in progress Fully charged flashing Normally on flashing Normally on flashing Normally on Blue Light Red Light Red Light Green Light Green Light Status INDICATOR LIGHT DESCRIPTION ① Light display priority, charging status light > abnormal status light > Bluetooth status light. ② If you need to observe the abnormal and Bluetooth status of the printer under charging status, please end the charging or go to the cell phone software to check. iOS / Android Visit https://ga.ctaiot.com/pc Download “ Clabel trade” and driver. Please check the software usage in the software help center Windows Scan the QR code below with a mobile phone to download “ Clabel trade”. Please operate the software follwing the software guidance. Download label editing app "Clabel trade" from Google Play Store or Apple APP Store and install it. Clabel trade SOFTWARE DOWNLOAD 6 PRECAUTIONS 7 (1) Do not disassemble the printer without permission. Please read this manual c arefully before use. (2) Please do not open the paper bin cover when the printer is working, o therwise there may be unpredictable situations or even damage the print er. (3) After printing, the printhead is still in a high temperature state, so do no t touch it to avoid burns. (4) After printing on thermal printing paper, the time to keep the handwriting is r elated to the quality of the thermal printing paper. If y ou want to print documents that need to be kept for a long time, ple ase use long-lasting thermal printing paper. In order to ensure the print quality and pr oduct life, it is recommended to use high quality printing p aper. (5) Avoid water or conductive substances (e.g., metal) from entering the int erior of the printer, and turn off the power as soon as this occurs. (6) The printer must ensure that the power is turned off during routine maint enance. (7) Do not use tools such as tweezers to scratch the print head, print r ollers, and sensor surfaces. Usage Precautions The printhead should be cleaned promptly if: (1) The Print is not clear; (2) The Vertical column of print is not clear; (3) A Grinding noise is heard while feeding the paper; Cleaning Steps: (1) Switch the printer power off,open the cover and remove any paper; (2) Allow the printhead to cool if you had just finished printing; (3) Using a soft cotton cloth dipped in absolute ethyl alcohol,gently wipe the dust and particles off the thermal printhead surface; (4) Only use the printer for printing until the cleaning alcohol evaporates completely and the cover is closed; Printer cleaning (1) Make sure to turn off the printer before any maintenance. (2) Do not touch the printhead surface with the fingers or metallic objects. Do not abrade the printhead, rubber roller, and sensor surface with tweezers or other tools. Abrasion could damage the printhead. (3) Do not use gasoline, acetone, or any other organic solvents for cleaning. (4) Only use the printer for printing until the cleaning alcohol evaporates completely Note FCC Warning Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority tooperate the equipment. NOTE: 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 harmful interference 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 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 the receiver is connected. --Consult the dealer or an experienced radio/TV technician for help. NOTE: This device and its antenna(s) must not be co-located oroperation in conjunction with any other antenna or transmitter R…

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Shenzhen Dudian Technology Co., Ltd. 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type 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 Product Name: Label Printer FCC ID: 2A359-CT221B Model(s): CT221B 2.911(d)(5)(i) Equipment Type We, [Shenzhen Dudian 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: Qi Liu Date: 2023.02.13 Title and Company name: Purchasing manager/ Shenzhen Dudian 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

Shenzhen Dudian Technology Co., Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.2 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) 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 Product Name: Label Printer FCC ID: 2A359-CT221B Model(s): CT221B 2.911(d)(5)(ii) Applicant filing We, [Shenzhen Dudian 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: Qi Liu Date: 2023.02.13 Title and Company name: Purchasing manager/ Shenzhen Dudian 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

Shenzhen Dudian Technology Co., Ltd. U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: 02-14-2023 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2A359-CT221B Shenzhen Dudian 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: Shenzhen Dudian Technology Co., Ltd. Address: 1101, Building 3, COFCO Chuangzhi Factory, No. 67 District, Xingdong, Xin'an, Bao'an, Shenzhen, Guangdong, China Signature: Contact Person: Qi Liu Tel: +86-15919952986 Email: [email protected]

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: Label Printer Model Number(s): CT221B Product Description: Label 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: 2023.02.13 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: February 13, 2023 Subject; Request for Confidentiality FCC ID: 2A359-CT221B 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

FCC ID: 2A359-CT221B EUT PHOTO(External Photos)

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

FCC ID: 2A359-CT221B EUT PHOTO(Internal Photos) BT Antenna

FCC ID: 2A359-CT221B 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 has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. 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 -3.33 -4(±1) -3 0.501 2440 5 0.156517 3.0 For BR Max Conducted Power(dBm) Tune-up Power(dBm) Max Tune-up Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit -3.98 -4(±1) -3 0.501 2441 5 0.156549 3.0 Note: The Bluetooth BR and Bluetooth BLE not transmit at the same time. So a SAR test is not required

Project No.: ZKT-230209L0601E-1 Page 1 of 49 FCC TEST REPORT FCC ID:2A359-CT221B Report Number. .............................. : ZKT-230209L0601E-1 Date of Test ......................................... January 13, 2023 to February 09, 2023 Date of issue ..................................... : February 10, 2023 Total number of pages ....................... 49 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-112_V0 Test Report Form(s) Originator .... : ZKT Testing Master TRF ................................... : Dated: 2021-07-06 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 ................................. : Label Printer Trademark ....................................... : N/A Model/Type reference ....................... : CT221B Ratings .............................................. : DC 7.4V by battery, USB 5V charging Project No.: ZKT-230209L0601E-1 Page 2 of 49 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 Tom Zou Tested by (name + signature) .................... : Jackson Fang Reviewer (name + signature) ..................... : Lake Xie Approved (name + signature) .................... : Project No.: ZKT-230209L0601E-1 Page 3 of 49 Table of Contents Page 1. VERSION ............................................................... 5 2. TEST SUMMARY ........................................................ 6 2.1 TEST FACILITY ......................................................... 7 2.2 MEASUREMENT UNCERTAINTY ......................................... 7 3. GENERAL INFORMATION ................................................ 8 3.1 GENERAL DESCRIPTION OF EUT ........................................ 8 3.2 Test Setup Configuration .................................................. 9 3.3 Support Equipment ....................................................... 9 3.4 Test Mode ............................................................. 10 3.5 EQUIPMENTS LIST FOR ALL TEST ITEMS ................................ 11 4. EMC EMISSION TEST ................................................... 13 4.1 Conducted emissions .................................................... 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 ......................................................... 13 4.1.5 EUT OPERATING CONDITIONS ........................................ 14 4.1.6 Test Result ........................................................... 15 4.2 Radiated emissions ..................................................... 17 4.2.1 Radiated Emission Limits ............................................... 17 4.2.2 TEST PROCEDURE ................................................... 17 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 ...................................................... 20 5. RADIATED BAND EMISSION MEASUREMENT ............................ 25 5.1 Test Requirement: ...................................................... 25 5.2 TEST PROCEDURE .................................................... 25 5.3 DEVIATION FROM TEST STANDARD .................................... 26 5.4 TEST SETUP .......................................................... 26 5.5 EUT OPERATING CONDITIONS ......................................... 26 5.6 TEST RESULT ......................................................... 27 6. CONDUCTED BAND EDGE AND SPURIOUS EMISSION .................... 28 6.1 Limit ................................................................... 28 6.2 Test Setup ............................................................. 28 6.3 Test procedure ......................................................... 28 6.4 DEVIATION FROM STANDARD .......................................... 28 6.5 CSE Test Result ........................................................ 29 7. 20DB&99% BANDWIDTH ................................................ 33 7.1 Test Setup ............................................................. 33 7.2 Limit .............................…

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Report No: SSP23010021A 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: CT221B Report No.: SSP23010021A Tested Date: 2023-01-08 Issued Date: 2023-01-13 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: SSP23010021A 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.: CT221B Frequency Range: 2400MHz-2483.5MHz Type of Antenna: PCB Antenna Antenna Gain: 0dBi (Max.) Impedance: 50 ohm Antenna View (10mm*5mm) 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: SSP23010021A Antenna Test Report Page 3 of 4 2. OTA Test 2.1 Gain Frequency Peak Gain (dBi) Polarity 2402MHz 0 Horizontal 2402MHz -0.88 Vertical 2442MHz -1.57 Horizontal 2442MHz -2.04 Vertical 2480MHz -2.77 Horizontal 2480MHz -3.27 Vertical 2.2 Radiation Pattern View Report No: SSP23010021A Antenna Test Report Page 4 of 4

EUT TEST PHOTO FCC ID: 2A359-CT221B Radiated band emission (30MHz-1GHz): Conducted emission: Radiated band emission (Above 1GHz):