2AVLFET0305m DIGITAL TAPE

2.4G radio frequency FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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. FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment . 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 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.

Company: Monolith Electric (Changzhou) Co., Ltd. Add: No.1-2 of Building 5, No.8 Huashan Road, Xinbei District, Changzhou, China Tel: +86-519 83189730 Fax: +86-519 83189730 E-mail: [email protected] C FR 47 §2.911(d)(5)(i) Attestation Letter QA-FR-1006-A RC 02-08-2023 Attestation Letter Date: 2024/5/21 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID: 2AVLFET030 Monolith Electric (Changzhou) Co., Ltd. (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Signature Print Name: Qing Xia Title: Quality Engineer

Company: Monolith Electric (Changzhou) Co., Ltd. Add: No.1-2 of Building 5, No.8 Huashan Road, Xinbei District, Changzhou, China Tel: +86-519 83189730 Fax: +86-519 83189730 E-mail: [email protected] C FR 47 §2.911 (d)(5)(ii) Attestation Letter QA-FR-1007-A RC 02-08-2023 Attestation Letter Date: 2024/05/21 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing FCC ID: 2AVLFET030 Monolith Electric (Changzhou) Co., Ltd.(“the applicant”) certifies that as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, Signature Print Name: Qing Xia Title: Quality Engineer

U.S. AGENT LETTER OF ATTESTATION Date: 2024-05-09 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing FCC ID: 2AVLFET030 Monolith Electric (Changzhou) Co., Ltd. certifies that, as of the date of the filing of the application, Iconsigh is our designated U.S. agent for service of process for the above referenced FCC ID. Monolith Electric (Changzhou) Co., Ltd. accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Iconsigh accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: Iconsigh Address: 2310 Homestead Road, Suite C1, Los Altos, CA 94024, USA FRN: 0033398652 Tel.: +1 (408) 320-9867 Email: [email protected] Signed by (printed name): Benjamin Kaur Signature: Applicant: Monolith Electric (Changzhou) Co., Ltd. Address: No.1-2 of Building 5, No.8 Huashan Road, Xinbei District, Changzhou, China FRN: 0029108743 Tel: +86-519 83189730 Email: [email protected] Signed by (printed name): Qing Xia Signature:

QA-FR-170-B Company: Monolith Electric (Changzhou) Co., Ltd. Add: No.1-2 of Building 5, No.8 Huashan Road, Xinbei District, Changzhou, China Tel: +86-519 83189730 Fax: +86-519 83189730 E-mail: [email protected] FCC Authorization Date: 2024/05/21 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We, Monolith Electric (Changzhou) Co., Ltd., Hereby authorizes Bay Area Compliance Laboratories Corp. (Kunshan) to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratory Corp. (Kunshan) on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely, Signature: Print Name: Qing Xia Title: Quality Engineer

QA-FR-171-A Company: Monolith Electric (Changzhou) Co., Ltd. Add: No.1-2 of Building 5, No.8 Huashan Road, Xinbei District, Changzhou, China Tel: +86-519 83189730 Fax: +86-519 83189730 E-mail: [email protected] FCC Confidential Authorization Date: 2024/05/21 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2AVLFET030 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Monolith Electric (Changzhou) Co., Ltd. hereby requests long-term confidential treatment of information accompanying this application as outlined below: Block Diagram Schematics Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Signature: Print Name: Qing Xia Title: Quality Engineer

Company: Monolith Electric (Changzhou) Co., Ltd. Add: No.1-2 of Building 5, No.8 Huashan Road, Xinbei District, Changzhou, China Tel: +86-519 83189730 Fax: +86-519 83189730 E-mail: d [email protected] DECLARATION Date:2024/05/21 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mill s Road Columbia, MD 21046 We, Monolith Electric (Changzhou) Co., Ltd. hereby declare that product name: 5m DIGITAL TAPE. (FCC ID: 2AVLFET030 ,model name : ET030，ED030, DM030, EM030, PS030, BR030, ET005, ET-031 are electrically identical with the ET-030, Which has been tested by Bay Area Compliance Labs Corp.(Kunshan) Th e differences of them are as follows: Model Name(Different series models correspond to different customers) Please contact me if there is need for any additional clarification or information. Best Regards. Signature: Print Name: Qing Xia Title: Quality Engineer

Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA240521001 EXHIBIT A - EUT EXTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA240521001 Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA240521001

Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA240521001 EXHIBIT B - EUT INTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA240521001 Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA240521001 Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA240521001 Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA240521001 Antenna Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA240521001

Bay Area Compliance Laboratories Corp. (Kunshan) Report No.: RKSA240521001-00B FCC Part 15.247 Page 14 of 52 FCC §1.1310 & §2.1093 - RF EXPOSURE Applicable Standard According to§2.1093and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. According to KDB 447498 D01 General RF Exposure Guidance The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(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 1. f (GHz) is the RF channel transmit frequency in GHz. 2. Power and distance are rounded to the nearest mW and mm before calculation. 3. The result is rounded to one decimal place for comparison. 4. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test Exclusion. Measurement Result Mode Frequency Range (MHz) Max Tune-up Conducted Power Calculated Distance (mm) Calculated Value Threshold (1-g SAR) SAR Test Exclusion (dBm) (mW) SRD 2404-2478 5.0 3.16 5 0.99 3.0 Yes Result: No SAR test is required.

ETOnboardAntenna SpecificationIntroduction 1.Antenna model: On board Antenna 2.Antenna size: 16.6mm*5.5mm 3.Antenna Manufacturer: Monolith Electric(Changzhou)Co.,Ltd. 4.Manufacturer Address: No.1-2 of Building 5, No.8 Huashan Road, Xinbei District, Changzhou, Jiangsu，China 5.Antenna icon: 6. RadiationPattern Gain and Efficiency Frequency (MHz) Peak Gain (dBi) Efficiency (%) 2400.00-8.944.84 2450.00-8.235.41 2500.00-7.626.05 Radiation Pattern 2400 MHz 3D Theta = 90, Phi = 0 Theta = 90, Phi = 90 Theta = 0, Phi = 0 Theta = 90, Phi = 180 Theta = 90, Phi = 270 Theta = 180, Phi = 0 2450 MHz 3D Theta = 90, Phi = 0 Theta = 90, Phi = 90 Theta = 0, Phi = 0 Theta = 90, Phi = 180 Theta = 90, Phi = 270 Theta = 180, Phi = 0 2500 MHz 3D Theta = 90, Phi = 0 Theta = 90, Phi = 90 Theta = 0, Phi = 0 Theta = 90, Phi = 180 Theta = 90, Phi = 270 Theta = 180, Phi = 0 TEST SETUP PHOTOGRAPHS

Note: This test report is prepared for the customer shown above and for the device described herein. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (Kunshan). This report must not be used by the customer to claim product certification, approval, or endorsement by NVLAP, or any agency of the U.S.Government. FCC PART 15.247 TEST REPORT For Monolith Electric (Changzhou) Co., Ltd. No.1-2 of Building 5, No.8 Huashan Road, Xinbei District, Changzhou, China FCC ID: 2AVLFET030 Report Type: Original Report Product Name: 5m DIGITAL TAPE Re port Number: RKSA240521001-00B Re port Date: 2024-07-25 Reviewed By: Jenny Yang Approved By: Oscar Ye Prepared By: Bay Area Compliance Laboratories Corp. (Kunshan) No.248 Chenghu Road, Kunshan, Jiangsu Province, China Tel: +86-512-86175000 Fax: +86-512-88934268 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Kunshan) Report No.: RKSA240521001-00B FCC Part 15.247 Page 2 of 52 TABLE OF CONTENTS REPORT REVISION HISTORY................................................................................................................................. 4 GENERAL INFORMATION ....................................................................................................................................... 5 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 5 OBJECTIVE ................................................................................................................................................................... 5 TEST METHODOLOGY .................................................................................................................................................. 5 MEASUREMENT UNCERTAINTY .................................................................................................................................... 6 TEST FACILITY ............................................................................................................................................................. 6 SYSTEM TEST CONFIGURATION .......................................................................................................................... 7 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 7 EUT EXERCISE SOFTWARE .......................................................................................................................................... 7 SPECIAL ACCESSORIES ................................................................................................................................................. 7 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 7 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 8 EXTERNAL I/O CABLE .................................................................................................................................................. 8 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 9 TEST EQUIPMENT LIST ......................................................................................................................................... 12 SUMMARY OF TEST RESULTS ............................................................................................................................. 13 FCC §1.1310 & §2.1093 - RF EXPOSURE ................................................................................................................ 14 APPLICABLE STANDARD ............................................................................................................................................ 14 MEASUREMENT RESULT ............................................................................................................................................ 14 FCC §15.203 – ANTENNA REQUIREMENT .......................................................................................................... 15 APPLICABLE STANDARD ............................................................................................................................................ 15 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 15 FCC §15.207 (a) – AC LINE CONDUCTED EMISSIONS ..................................................................................... 16 APPLICABLE STANDARD ............................................................................................................................................ 16 TEST SYSTEM SETUP .................................................................................................................................................. 16 EMI TEST RECEIVER SETUP ....................................................................................................................................... 16 TEST PROCEDURE ...................................................................................................................................................... 17 TEST RESULTS SUMMARY .......................................................................................................................................... 17 TEST DATA: SEE APPENDIX ....................................................................................................................................... 17 FCC §15.205, §15.209 & §15.247(d) – RADIATED EMISSIONS ........................................................................... 18 APPLICABLE STANDARD ..................................................…

Text truncated - open the document above for the full version.

Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA240521001 EXHIBIT C - TEST SETUP PHOTOGRAPHS Conducted Emissions - Front View Conducted Emissions - Left View Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA240521001 Radiated Emissions-Ground-parallel View (Below 30 MHz) Radiated Emissions-Perpendicular View (Below 30 MHz) Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA240521001 Radiated Emissions-Parallel View (Below 30 MHz) Radiated Emissions - Front View (Below 1 GHz) Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA240521001 Radiated Emissions (1 GHz-18 GHz) Radiated Emissions (18 GHz-25 GHz)