2AZVIJC-3518Two-way radio

462.55-467.7250MHz FCC Compliance Statements: 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. Changes or modifications not expressly approved by the party responsible for complia nce 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 prot ection 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 communicati ons. 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 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. This device complies with FCC radiation exposure limits set forth for an uncontrolled environment. Do not use this device when the antenna shows o bvious damages. Hold this transmitter approximately 25 mm away from your face and speak normal with the antenna pointed up and away. Use the supplied belt clip for body - worn configuration as other accessories may not comply to the limits. WARNING: MODIFICATION OF THIS DEVICE TO RECEIVE CELLULAR RADIOTELEPHONE SERVICE SIGNALS IS PROHIBITED UNDER FCC RULES AND FEDERAL LAW. Licensing Information : Use our radio in USA is subject to the rules & regulations of FCC. Changes or modifications not expressly approved by our may void the user authority granted by the FCC to operate this radio and should not be made. To comply with FCC requirements, transmit ter adjustments should be made only by or under the supervision of a person certified as technically qualified to perform transmitter maintenance and repairs in the private land mobile and fixed services as certified by an organization representative of th e user of those services. Replacement of any transmitter component (crystal, semiconductor, etc) not authorized by the FCC equipment authorization for this radio could violate FCC rules. Note : Use of this radio outside the country where it was intended to be distributed is subject to government regulations and may be prohibited. Important : Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this device. Your radio is set up to transmit a regulated signal on an assigned frequency. It is against the law to alter or adjust the settings inside the radio to exceed those limitations. Any adjustments to your radio must be made by qualified technicians. Frequency List: No. Frequency List No. Frequency List No. Frequency List 1 462.5625 8 467.5625 1 5 462.5500 2 462.5875 9 467.5875 1 6 462.5750 3 462.6125 10 467.6125 1 7 462.6000 4 462.6375 11 467.6375 1 8 462.6250 5 462.6625 12 467.6625 1 9 462.6500 6 462.6875 13 467.6875 2 0 462.6750 7 462.7125 14 467.7125 2 1 462.7000 - - - - 2 2 462.7250 N ote: 467 MHz interstitial channels must not exceed 0.5 Watt .

MATH MARK (FUJIAN)COMMUNICATIONS CORP. LIMITED No 789,Xiacuo Area,Sihuang Village,Daxiamei,Nan'an,Quanzhou,Fujian,China 362302 ___________________________________________________________________________________________ Date: 2021-07-15 Declaration Letter FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Declaration of compliance to the requirements of §15.121 FCC ID: 2AZVIJC-3518 Dear Sir/Madam, We declare that, this scanning receiver is incapable of operating (tuning), or readily being altered by the users to operate, within the frequency bands allocated to the Cellular Radiotelephone Service in part 22 of this chapter (cellular telephone bands). This device will not be able to receive transmissions in the cellular telephone bands by means of clipping the leads of, or installing, a simple component such as a diode, resistor or jumper wire; replacing a plug-in semiconductor chip; or programming a semiconductor chip using special access codes or an external device, such as a personal computer. This device is also incapable of converting digital cellular communication transmissions to analog voice audio. This device is designed so that the tuning, control and filtering circuitry is inaccessible. Any attempts to modify the equipment to receive transmissions from the Cellular Radiotelephone Service will render the receiver inoperable. This scanning receiver rejects any signals from the Cellular Radiotelephone Service frequency bands that are 38 dB or lower based upon a 12 dB SINAD measurement. We are aware that the modification of this device to receive transmissions from Cellular Radiotelephone Service frequency bands will be considered to constitute manufacture of such equipment. This includes any individual, individuals, entity or organization that modifies one or more scanners. Any modification to receive transmissions from the Cellular Radiotelephone Service frequency bands voids the certification of the scanning receiver, regardless of the date of manufacture of the original unit. Sincerely Yours, Signature: ___________________________ Sandy Sun

MATH MARK (FUJIAN)COMMUNICATIONS CORP. LIMITED July 20, 2021 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject: Explanation of differences between product types FCC ID : 2AZVIJC-3518 Model Number: JC-3518, JC-3518B, JC-3518C To Whom It May Concern: We, The MATH MARK (FUJIAN)COMMUNICATIONS CORP. LIMITED hereby declare that the models are identical except the surface shell exterior line design. Except for the different above, no other modification is performed. Sincerely, Signature: MATH MARK (FUJIAN)COMMUNICATIONS CORP. LIMITED Contact person: Sandy Sun

MATH MARK (FUJIAN)COMMUNICATIONS CORP. LIMITED Agent Authorization Company: MATH MARK (FUJIAN)COMMUNICATIONS CORP. LIMITED Address: No 789,Xiacuo Area,Sihuang Village,Daxiamei,Nan'an,Quanzhou,Fujian,China 362302 Product Name: Two-way radio Model Number(s): JC-3518, JC-3518B, JC-3518C Product Description: Two-way radio 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: 2021-07-20 Name: Sandy Sun Company: MATH MARK (FUJIAN)COMMUNICATIONS CORP. LIMITED

MATH MARK (FUJIAN)COMMUNICATIONS CORP. LIMITED Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2021-07-18 Subject; Request for Confidentiality FCC ID: 2AZVIJC-3518 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 MATH MARK (FUJIAN)COMMUNICATIONS CORP. LIMITED Contact person: Sandy Sun ————————

External Photos ALL VIEW OF SERIAES MODEL ALL VIEW OF SERIES MODEL-BACK VIEW JC-3518C JC-3518B JC-3518 WHOLE VIEW OF EUT TOP VIEW OF EUT BOTTOM VIEW OF EUT FRONT VIEW OF EUT BACK VIEW OF EUT LEFT VIEW OF EUT RIGHT VIEW OF EUT

FCC ID Label Location 15mm&30mm FCC ID: 2AZVIJC-3518

Internal Photos OPEN VIEW-1 OF EUT OPEN VIEW-2 OF EUT OPEN VIEW-3 OF EUT INTERNAL VIEW-1 OF EUT Antenna INTERNAL VIEW-2 OF EUT INTERNAL VIEW-3 OF EUT INTERNAL VIEW-4 OF EUT

Page 1 of 22 FCC Test Report Report No.: AGC04447210504FE01 FCC ID : 2AZVIJC-3518 PRODUCT DESIGNATION : Two-way radio BRAND NAME : JJCC MODEL NAME : JC-3518, JC-3518B, JC-3518C APPLICANT : MATH MARK (FUJIAN)COMMUNICATIONS CORP. LIMITED DATE OF ISSUE : Jul. 08, 021 STANDARD(S) : FCC Part 15 Rules REPORT VERSION : V 1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC04447210504FE01 Page 2 of 22 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Jul. 08, 021 Valid Initial release Report No.: AGC04447210504FE01 Page 3 of 22 TABLE OF CONTENTS 1. VERIFICATION OF COMPLIANCE ................................................................................................................. 4 2. PRODUCT INFORMATION .............................................................................................................................. 5 3. IDENTIFICATION OF THE RESPONSIBLE TESTING LOCATION ............................................................... 6 4. SUPPORT EQUIPMENT LIST ......................................................................................................................... 7 5. SYSTEM DESCRIPTION .................................................................................................................................. 7 6. MEASUREMENT UNCERTAINTY ................................................................................................................... 8 7. SUMMARY OF TEST RESULTS ..................................................................................................................... 8 8. FCC RADIATED EMISSION TEST .................................................................................................................. 9 8.1 PROVISIONS APPLICABLE ................................................................................................................... 9 8.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................... 9 8.3 TEST PROCEDURE .............................................................................................................................. 11 8.4 TEST RESULT ....................................................................................................................................... 12 9. FCC CONDUCTED EMISSION TEST ............................................................................................................ 16 9.1 PROVISIONS APPLICABLE ................................................................................................................. 16 9.2 TEST SETUP BLOCK DIAGRAM ......................................................................................................... 16 9.3 TEST PROCEDURE .............................................................................................................................. 17 9.4 TEST RESULT ....................................................................................................................................... 18 APPENDIX I PHOTOGRAPHS OF TEST SETUP ............................................................................................. 20 APPENDIX II: PHOTOGRAPHS OF EUT .......................................................................................................... 22 Report No.: AGC04447210504FE01 Page 4 of 22 1. VERIFICATION OF COMPLIANCE Applicant: MATH MARK (FUJIAN)COMMUNICATIONS CORP. LIMITED Address: No 789,Xiacuo Area,Sihuang Village,Daxiamei,Nan'an,Quanzhou,Fujian,China 362302 Manufacturer: MATH MARK (FUJIAN)COMMUNICATIONS CORP. LIMITED Address: No 789,Xiacuo Area,Sihuang Village,Daxiamei,Nan'an,Quanzhou,Fujian,China 362302 Factory: MATH MARK (FUJIAN)COMMUNICATIONS CORP. LIMITED Address: No 789,Xiacuo Area,Sihuang Village,Daxiamei,Nan'an,Quanzhou,Fujian,China 362302 Product Designation Two-way radio Brand Name JJCC Test Model JC-3518 Series Model JC-3518B, JC-3518C Difference Description Surface shell exterior line design is different Measurement Procedure: ANSI C63.4: 2014 Deviation: No any deviation from the test method. Date of Test: May 12, 2021~Jul. 08, 2021 Condition of Test Sample: Normal Test Result: Pass Report Template AGCRT-US-PTT/EMC The above equipment was tested by Attestation Of Global Compliance (Shenzhen) Co., Ltd. for compliance with the requirements set forth in the FCC Rules and Regulations Part 15, the measurement procedure according to ANSI C63.4:2014. This said equipment in the configuration described in this report shows the maximum emission levels emanating from equipment are within the compliance requirements. The test results of this report relate only to the tested sample identified in this report. Prepared By Donjon Huang (Project Engineer) Jul. 08, 2021 Reviewed By Calvin Liu (Reviewer) Jul. 08, 2021 Approved By Forrest Lei Authorized Officer Jul. 08, 2021 Report No.: AGC04447210504FE01 Page 5 of 22 2. PRODUCT INFORMATION The EUT is a Two-way radio designed for voice communication. It is designed by way of utilizing the F3E modulation achieves the system operating. A major technical description of EUT is described as following: Communication Type Voice / Tone only Modulation FM RX Frequency Range 462.5625-462.7125MHz, 467.5625-467.7125MHz, 462.5500-462.7250MHz Emission Type F3E Antenna Designation Inseparable Antenna Gain 1.5dBi Hardware Version JC-3518 V1.0 Software Version V3.0 Power Supply DC 3.7V by battery, 1800mAh I/O Port Information (Applicable Not Applicable) I/O Port of EUT I/O Port Type Q’TY Cable Tested with USB Port 1 1.0m Unshielde 1 Report No.: AGC04447210504FE01 Page 6 of 22 3. IDENTIFICATION OF THE RESPONSIBLE TESTING LOCATION LIST OF TEST EQUIPMENT: TEST EQUIPMENT OF CONDUCTED EMISSION TEST Equipment Manufacturer Model S/N Cal. Date Cal. Due TEST RECEIVER R&S ESPI 101206 May 11, 2021 May 10, 2022 LISN R&S ESH2-Z5 100086 Jun. 11, 2020 Jun. 10, 2021 LISN R&S ESH2-Z5 100086 Jun. 09, 2021 Jun. 08, 2022 TEST SOFT…

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Test Setup Photos RADIATED EMISSION TEST SETUP-BELOW 1GHZ RADIATED EMISSION TEST SETUP-ABOVE 1GHZ CONDUCTED EMISSION TEST SETUP