2A7JTLASER-MASTER-3Laser Engraver

Date: Jul. 13, 2022 < Dongguan Ortur Intelligent Technologies Co., Ltd. > Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD21046 Subject; Request for Long Term Confidentiality FCC ID: 2A7JTLASER-MASTER-3 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 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: Eason Zeng Title: Manager

Dongguan Ortur Intelligent Technologies Co., Ltd. Letter of Authorization Company: Dongguan Ortur Intelligent Technologies Co., Ltd. Address: No.4 Building,Dongguan Jinzhong Smart Industrial Park, Changping, Dongguan, China Product name: Laser Engraver Trade name: N/A Model name: Laser Master 3, Laser Master 4, Laser Master 3 Pro, Laser Master 4 Pro, Laser Master 2 S2, Laser Master 2 Pro S2, Aufero Laser 1, Aufero Laser 1 Pro, Aufero Laser 2, Aufero Laser 2 Pro, Aufero Laser 3, Aufero Laser 4 FCC Identifier: 2A7JTLASER-MASTER-3 We authorize MiCOM LabsInc, 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the above named equipment. Any individual within MiCOM Labs is authorized to act on our behalf and take action on the application. We declare that MiCOM LabsInc, 575 Boulder Court, Pleasanton, California 94566, USA, is allowed to forward all information related to the approval project to the Federal Communication Commission 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. Name: Eason Zeng Date: Jul. 13, 2022 Title: Manager Signature of applicant:

Model Difference Declaration To Whom It May Concern, We, Dongguan Ortur Intelligent Technologies Co., Ltd. Product name: Laser Engraver Trade name: N/A Model name: Laser Master 3, Laser Master 4, Laser Master 3 Pro, Laser Master 4 Pro, Laser Master 2 S2, Laser Master 2 Pro S2, Aufero Laser 1, Aufero Laser 1 Pro, Aufero Laser 2, Aufero Laser 2 Pro, Aufero Laser 3, Aufero Laser 4 All model’s the function, software and electric circuit are the same, only with a product color and model named different. Test sample model: Laser Master 3. Please contact me if you have any question. Name: Eason Zeng Date: Jul. 13, 2022 Title: Manager Signature of applicant:

Model: Laser Master 3 Model: Laser Master 3 Model: Laser Master 3 Model: Laser Master 3 Model: Laser Master 3

FCC ID LABEL: Label Location: FCC ID: 2A7JTLASER-MASTER-3 Product Name: Laser Engraver Model Name: Laser Master 3 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, and (2)This device must accept any interference received, including interference that may cause undesired operation. Long: 3cm Width: 2cm

Model: Laser Master 3 Model: Laser Master 3 Model: Laser Master 3 Model: Laser Master 3 SMA Antenna

MPE ESTIMATION FCC ID: 2A7JTLASER-MASTER-3 1. Limit for General Population/Uncontrolled Exposures Frequency Power Density(mW/cm2) Averaging Time(minutes) 300MHz-1.5GHz F/1500 30 1.5GHz-100GHz 1.0 30 Note: F= Frequency in MHz 2. Estimation Result Mode Max PK Output Power(dBm) Tune Up Power(dBm) Max Tune Up Power(mW) Antenna Gain(dBi) Antenna Gain (linear) MPE (mW/cm²) 11b 12.75 12±1(13) 19.95 3 0.5012 0.001990 11g 12.50 12±1(13) 19.95 3 0.5012 0.001990 11n/HT20 11.76 11±1(12) 15.85 3 0.5012 0.001581 11n/HT40 10.89 10±1(11) 12.59 3 0.5012 0.001256 Note: Note: The estimation distance is 20cm. Note: PK Output power=conducted power. Conducted power see the test report UNIA22062004ER-61, antenna gain=3dBi. ------The End------

Page 1 of 82 Report No.: UNIA22062004ER-61 FCC RADIO TEST REPORT FCC ID: 2A7JTLASER-MASTER-3 Sample： Laser Engraver Trade Name： N/A Main Model： Laser Master 3 Additional Model： Laser Master 4, Laser Master 3 Pro, Laser Master 4 Pro, Laser Master 2 S2, Laser Master 2 Pro S2, Aufero Laser 1, Aufero Laser 1 Pro, Aufero Laser 2, Aufero Laser 2 Pro, Aufero Laser 3, Aufero Laser 4 Report No.： UNIA22062004ER-61 Prepared for Dongguan Ortur Intelligent Technologies Co., Ltd. No.4 Building,Dongguan Jinzhong Smart Industrial Park, Changping, Dongguan, China Prepared by Shenzhen United Testing Technology Co., Ltd. 2F, Annex Bldg, Jiahuangyuan Tech Park, #365 Baotian 1 Rd, Tiegang Community, Xixiang Str, Bao'an District, Shenzhen, China Page 2 of 82 Report No.: UNIA22062004ER-61 TEST RESULT CERTIFICATION Applicant .............................. : Dongguan Ortur Intelligent Technologies Co., Ltd. Address ................................. : No.4 Building,Dongguan Jinzhong Smart Industrial Park, Changping, Dongguan, China Manufacturer ........................ : Dongguan Ortur Intelligent Technologies Co., Ltd. Address ................................. : No.4 Building,Dongguan Jinzhong Smart Industrial Park, Changping, Dongguan, China Product description Product ....................................... : Laser Engraver Trade Name ........................... : N/A Model Name .......................... : Laser Master 3, Laser Master 4, Laser Master 3 Pro, Laser Master 4 Pro, Laser Master 2 S2, Laser Master 2 Pro S2, Aufero Laser 1, Aufero Laser 1 Pro, Aufero Laser 2, Aufero Laser 2 Pro, Aufero Laser 3, Aufero Laser 4 Test Methods ........................ : FCC Rules and Regulations Part 15 Subpart C Section 15.247 ANSI C63.10: 2013 This device described above has been tested by Shenzhen United Testing Technology Co., Ltd., 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 UNI, this document may be altered or revised by Shenzhen United Testing Technology Co., Ltd., personnel only, and shall be noted in the revision of the document. Date of Test ........................................... : Date (s) of performance of tests ............. : Jun. 20, 2022 ~ Jul. 05, 2022 Date of Issue .......................................... : Jul. 13, 2022 Test Result.............................................. : Pass Prepared by: Kahn yang/Supervisor Reviewer: Kelly Cheng/Supervisor Approved & Authorized Signer: Liuze/Manager Page 3 of 82 Report No.: UNIA22062004ER-61 Table of Contents Page 1 TEST SUMMARY ........................................................................................................ 5 2 GENERAL INFORMATION ......................................................................................... 8 2.1 GENERAL DESCRIPTION OF EUT .............................................................................. 8 2.2 CARRIER FREQUENCY OF CHANNELS ..................................................................... 9 2.3 TEST MODE ................................................................................................................. 9 2.4 TEST SETUP .............................................................................................................. 10 2.5 DESCRIPTION TEST PERIPHERAL AND EUT PERIPHERAL ................................... 10 2.6 MEASUREMENT INSTRUMENTS LIST ..................................................................... 11 3 CONDUCTED EMISSION ......................................................................................... 12 3.1 TEST LIMIT ................................................................................................................. 12 3.2 TEST SETUP .............................................................................................................. 12 3.3 TEST PROCEDURE ................................................................................................... 13 3.4 TEST RESULT ............................................................................................................ 13 4 RADIATED EMISSION .............................................................................................. 16 4.1 TEST LIMIT ................................................................................................................. 16 4.2 TEST SETUP .............................................................................................................. 17 4.3 TEST PROCEDURE ................................................................................................... 18 4.4 TEST RESULT ............................................................................................................ 18 5 OCCUPIED BANDWIDTH ......................................................................................... 41 5.1 TEST LIMIT ................................................................................................................. 41 5.2 TEST PROCEDURE ................................................................................................... 41 5.3 EQUIPMENT USED .................................................................................................... 41 5.4 TEST RESULT ............................................................................................................ 41 6 POWER SPECTRAL DENSITY ................................................................................ 50 6.1 TEST LIMIT ................................................................................................................. 50 6.2 TEST PROCEDURE ................................................................................................... 50 6.3 EQUIPMENT USED .................................................................................................... 50 6.4 TEST RESULT ...…

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Model: Laser Master 3 Radiated Emission test Model: Laser Master 3 Conducted Emission test