2A74AD1Mini printer

FCC Statement 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. (2)This device must accept any interference received, including interference that ma y c ause undesired operation. 2.Changes or modifications not expressly approved by the party responsible for compliance 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 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 frequence 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 equipmemt 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 the following measures: • Reorient or relocate the receiving antenna. •Increase the separation between the equipment and receiver. •Connect the equipment into an autlet on a circuit different from that to which the receiver is connected. •Consult the dealer or an experienced radio/TV technician for help.

Xiamen Lujiang Technology Co., Ltd Declaration on model difference We the undersigned hereby confirm that these models are identical, and all models have the same RF module and antenna, PCB layout , schematics and component. the difference is the model name Production name FCC ID Model no. Mini printer 2A74AD1 D1, 3561 Sincerely, Jiaan Cai GM Xiamen Lujiang Technology Co., Ltd Room 503, No.57, Wanghai Road, Software Park Phase II, Torch Hi-Tech Industrial Development Zone, Xiamen

Xiamen Lujiang Technology Co., Ltd 2022-12-13 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (EUT Name: Mini printer /Model: D1, 3561) 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 ,Operational Description,Schematics) 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, Sincerely, Jiaan Cai GM Xiamen Lujiang Technology Co., Ltd Room 503, No.57, Wanghai Road, Software Park Phase II, Torch Hi-Tech Industrial Development Zone, Xiamen

Xiamen Lujiang Technology Co., Ltd 2022-12-13 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 DongGuan Anci Electronic 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, Sincerely, Jiaan Cai GM Xiamen Lujiang Technology Co., Ltd Room 503, No.57, Wanghai Road, Software Park Phase II, Torch Hi-Tech Industrial Development Zone, Xiamen

ANT

RF EXPOSURE EVALUATION EUT Specification EUT Mini printer Model Number D1 FCC ID 2A74AD1 Antenna gain (Max) 2.58dBi Operation Frequency BT: 2402-2480MHz Input Rating DC 5V from adapter and DC 3.7V from battery Classification Per Stipulated Test Standard §15.247(i), §2.1093 Modulation GFSK, Max. output power -1.37dBm(0.000729W) Test Requirement: According to §15.247(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. Routine SAR evaluation refers to that specifically required by §2.1093, using measurements or computer simulation. When routine SAR evaluation is not required, portable transmitters with output power greater than the applicable low threshold require SAR evaluation to quality for TCB approval. One antenna is available for the EUT. The minimum separation distance is 5mm. According to KDB 447498, no stand-alone required for BT antenna, and no simultaneous SAR measurement is required. Signature: Tiger Xu Date: 2022-12-08 Transmit Frequency (MHz) Mode Measured Power (dBm) Tune up Power (dBm) Max tune up power(dBm) Calculation Result 1-g SAR 2402 GFSK -1.42 -1±1 0 0.442895 3 2440 GFSK -1.37 -1±1 0 0.447766 3 2480 GFSK -1.85 0±1 1 0.452622 3

TRF No.: 01-R001-3A-LE TRF Originator: GTG TRF Date: 2022-06-29 Web: www.gtggroup.com E-mail: [email protected] Tel.: 86-400 755 8988 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT FCC PART 15 SUBPART C REQUIREMENT OF Mini printer Model No.: D1, 3561 Trademark: N/A FCC ID: 2A74AD1 Report No.: E01A22120090F00101 Issue Date: December 13, 2022 Prepared for Xiamen Lujiang Technology Co., Ltd Room 503, No.57, Wanghai Road, Software Park Phase II, Torch Hi-Tech Industrial Development Zone, Xiamen Prepared by Dong Guan Anci Electronic Technology Co., Ltd. 1-2 Floor, Building A, No.11, Headquarters 2 Road, Songshan, Lake Hi-tech Industrial Development Zone, Dongguan City, Guangdong Pr., China.. This report shall not be reproduced, except in full, without the written approval of Dong Guan Anci Electronic Technology Co., Ltd. Page 2 of 51 Report No.: E01A22100041F00102 TRF No.: 01-R001-3A-LE Global Testing , Great Quality. VERIFICATION OF COMPLIANCE Applicant: Xiamen Lujiang Technology Co., Ltd Room 503, No.57, Wanghai Road, Software Park Phase II, Torch Hi-Tech Industrial Development Zone, Xiamen Manufacturer: Xiamen Lujiang Technology Co., Ltd Room 503, No.57, Wanghai Road, Software Park Phase II, Torch Hi-Tech Industrial Development Zone, Xiamen Product Description: Mini printer Trade Mark: N/A Model Number: D1, 3561 (All models are identical except for model name We choose model D1 to do all tests.) We hereby certify that: The above equipment was tested by Dong Guan Anci Electronic Technology Co., Ltd. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10-2013 and the energy emitted by the sample EUT tested as described in this report is in compliance with conducted and radiated emission limits of FCC Rules Part 15.247(2022). Date of Test : December 07, 2022 to December 08, 2022 Prepared by : Duke Liu/Editor Reviewer & Authorized Signer : Tiger Xu/ Supervisor Page 3 of 51 Report No.: E01A22100041F00102 TRF No.: 01-R001-3A-LE Global Testing , Great Quality. Modified Information Version Summary Revision Date Report No. Ver.1.0 Original Report / E01A22120090F00101 Page 4 of 51 Report No.: E01A22100041F00102 TRF No.: 01-R001-3A-LE Global Testing , Great Quality. Table of Contents 1. GENERAL INFORMATION ............................................................................................................ 6 1.1 PRODUCT DESCRIPTION .......................................................................................................... 6 1.2 TEST METHODOLOGY .............................................................................................................. 6 1. TEST FACILITY ...................................................................................................................... 7 2. DESCRIPTION OF TEST MODES ...................................................................................... 8 3. SUMMARY OF TEST RESULTS ....................................................................................... 10 6DB BANDWIDTH MEASUREMENT ............................................................................................. 10 4. TEST SYSTEM UNCERTAINTY ........................................................................................ 11 5. CONDUCTED EMISSIONS TEST ..................................................................................... 12 6.1 MEASUREMENT PROCEDURE: ................................................................................................ 12 6.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ............................................................ 12 6.3 MEASUREMENT EQUIPMENT USED: ........................................................................................ 12 6.4 CONDUCTED EMISSION LIMIT ..................................................................................................... 12 5.5 MEASUREMENT RESULT: ....................................................................................................... 13 6.5 CONDUCTED MEASUREMENT PHOTOS: ...................................................................................... 15 6. RADIATED EMISSION TEST ............................................................................................. 16 7.1 MEASUREMENT PROCEDURE ................................................................................................. 16 7.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ............................................................ 18 7.3 MEASUREMENT EQUIPMENT USED: ........................................................................................ 19 7.4 RADIATED EMISSION LIMIT ......................................................................................................... 20 7.5 MEASUREMENT RESULT .......................................................................................................... 21 7.6 RADIATED MEASUREMENT PHOTOS: .......................................................................................... 27 7. 6DB BANDWIDTH MEASUREMENT ............................................................................... 28 8.1 MEASUREMENT PROCEDURE ................................................................................................. 28 8.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ............................................................ 28 8.3 MEASUREMENT EQUIPMENT USED: ............................................................................................ 28 8.4 LIMIT ........................................................................................................................................ 28 8.5 MEASUREMENT RESULTS: ..................................................................................................... 29 9. MAXIMUM PEAK OUTPUT POWER TEST .............................................................................. 32 9.1 MEASUREMENT PROCEDURE ...........…

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Gian and Efficiency 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 3D and 1DRadiation Patterns Total Power (dBm) -15 10 -10 -5 0 5 X Y Z Azimuth = 0.0 Elevation = 0.0 Roll = 0.0 Cut1 P o w e r ( d B m ) Angle (? Scale: 1/div Min: -5 Max: 5 0 180 30 210 60 240 90270 120 300 150 330 Cut2 P o w e r ( d B m ) Angle (? Scale: 2/div Min: -16 Max: 4 0 180 30 210 60 240 90270 120 300 150 330 Cut3 P o w e r ( d B m ) Angle (? Scale: 2/div Min: -6 Max: 6 0 180 30 210 60 240 90270 120 300 150 330