2BMEP-FLICALS2NarTick

Beijing Muye Technology Co., Ltd (November 27, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID: 2BMEP-FLICALS2 [Beijing Muye Technology 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, (Applicant signature) (Applicant printed name) zhang bin Beijing Muye Technology Co., Ltd (November 27, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for FCC ID: 2BMEP-FLICALS2 [Beijing Muye Technology 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, (Applicant signature) (Applicant printed name) zhang bin

Beijing Muye Technology Co., Ltd (November 27, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (NarTick / FLICAL-S2 / FCC ID: 2BMEP-FLICALS2 ) 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 Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature: Name: zhang bin Title: CEO

Beijing Muye Technology Co., Ltd (November 27, 2024) 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 (Shenzhen CTB Testing 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, Signature: Name: zhang bin Title: CEO

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: FLICAL-S2 External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 4

FCC ID LABEL: Label Location: FCC ID: 2BMEP-FLICALS2 Model No.: FLICAL-S2

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2BMEP-FLICALS2 Applied procedures / limit According to FCC §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. Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 Note: ƒ is frequency in MHz * = Power density limit is applicable at frequencies greater than 100 MHz Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz * = Plane-wave equivalent power density MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna,R=20cm Test Result of RF Exposure Evaluation Modes& Channel Freq. (MHz) Tune up Produce power Maximu m peak output power (dBm) Output power to antenna (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW / cm2 ) Result 2.4G WIFI 802.11b&2 412 20±1 21 125.892 5 2.0701 (3.16dBi) 0.05187 1 Pass

OTA TEST REPORT TA Technology (Shanghai) Co., Ltd. tested the above equipment in accordance with the requirements in ANSI/IEEE Std 149-2008. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. Prepared by: Peng Tao Approved by: Kai Xu TA Technology (Shanghai) Co., Ltd. No.145, Jintang Rd, Tangzhen Industry Park, Pudong Shanghai, China TEL: +86‐021‐50791141/2/3 FAX: +86‐021‐50791141/2/3‐8000 Applicant Espressif System (Shanghai) Co.,Ltd Product ESP32-C3-WROOM-02 Model ESP-ANT B Report No. Y2102A0260-T3 Issue Date March 9, 2021 OTA Test Report Report No: Y2102A0260-T3 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 2 of 13 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. TABLE OF CONTENTS 1. Test Laboratory .............................................................................................................................. 3 1.1. Notes of the Test Report ................................................................................................... 3 1.2. Test facility ........................................................................................................................ 3 1.3. Testing Location ................................................................................................................ 3 1.4. Laboratory Environment .................................................................................................... 4 2. General Description of Equipment under Test ............................................................................... 5 2.1. Applicant and Manufacturer Information ............................................................................ 5 2.2. General information ........................................................................................................... 5 2.3. Test Date ........................................................................................................................... 5 2.4. Receiving Date .................................................................................................................. 5 2.5. Applied Standards ............................................................................................................. 6 3. Test Conditions .............................................................................................................................. 7 3.1. Test Configuration ............................................................................................................. 7 3.2. Test Measurement ............................................................................................................. 7 4. Test Results ................................................................................................................................... 8 4.1. Gain and Efficiency ............................................................................................................ 8 5. Equipment List ............................................................................................................................... 9 ANNEX A 3-D Pattern Plots ................................................................................................................... 10 ANNEX B：The EUT Appearance and Test Configuration ...................................................................... 12 B.1 EUT Appearance ................................................................................................................... 12 B.2 Test Configuration ................................................................................................................. 13 OTA Test Report Report No: Y2102A0260-T3 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 3 of 13 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. 1. Test Laboratory 1.1. Notes of the Test Report This report shall not be reproduced in full or partial, without the written approval of TA technology (shanghai) co., Ltd. The results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein .Measurement Uncertainties were not taken into account and are published for informational purposes only. This report is written to support regulatory compliance of the applicable standards stated above. 1.2. Test facility A2LA (Certificate Number: 3857.01) TA Technology (Shanghai) Co., Ltd. has been listed by American Association for Laboratory Accreditation to perform measurement. 1.3. Testing Location Company: TA Technology (Shanghai) Co., Ltd. Address: No.145, Jintang Rd, Tangzhen Industry Park, Pudong Shanghai, China City: Shanghai Post code: 201201 Country: P. R. China Contact: Xu Kai Telephone: +86-021-50791141/2/3 Fax: +86-021-50791141/2/3-8000 Website: http://www.ta-shanghai.com E-mail: [email protected] OTA Test Report Report No: Y2102A0260-T3 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 4 of 13 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. 1.4. Laboratory Environment Temperature Min. =19°C，Max. = 25°C Relative humidity Min. =40%，Max. =72% Shield effect 0.7-6GHz > 100dB Ground resistance <0.5 OTA Test Report Report No: Y2102A0260-T3 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 5 of 13 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. 2. General Description of Equipment under Test 2.1. Applicant and Manufacturer Information Applicant Name Espressif System (Shanghai) Co.,Ltd Applicant address Suite 204 Block 2, 690 Bibo Road, Zhang Jiang Hi-Tech Park, Shanghai, China Manufacturer Name Espressif System (Shanghai) Co.,Ltd Manufacturer address Suite 204 Block 2, 690 Bibo Road, Zhang Jiang Hi-Tech Park, Shanghai, China 2.2. …

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Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 64 TEST REPORT Compiled by: Reviewed by: Approved by: Zhou Kui Arron Liu Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name: NarTick FCC ID: 2BMEP-FLICALS2 Trademark: NarTick Model Number: FLICAL-S2 Prepared For: Beijing Muye Technology Co., Ltd Address: Room E649, No.601, 6/F, Building 2, Zone 4, Wangjing Dongyuan, Chaoyang District, Beijing Manufacturer: Beijing Muye Technology Co., Ltd Address: Room E649, No.601, 6/F, Building 2, Zone 4, Wangjing Dongyuan, Chaoyang District, Beijing Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Oct. 28, 2024 Sample tested Date: Oct. 28, 2024 to Nov. 21, 2024 Issue Date: Nov. 21, 2024 Report No.: CTB24102804303RF01 Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2013 Test Results PASS Remark: This is WIFI-2.4GHz band radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB24102804303RF01 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 64 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ............................................................ 4 2. TEST SUMMARY ..................................................... 5 3. MEASUREMENT UNCERTAINTY ....................................... 6 4. PRODUCT INFORMATION AND TEST SETUP ........................... 7 4.1 Product Information ..................................................... 7 4.2 Test Setup Configuration ................................................ 7 4.3 Support Equipment ..................................................... 7 4.4 Channel List ........................................................... 8 4.5 Test Mode ............................................................. 8 4.6 Test Environment ....................................................... 8 5. TEST FACILITY AND TEST INSTRUMENT USED ......................... 9 5.1 Test Facility ............................................................ 9 5.2 Test Instrument Used ................................................... 9 6. AC POWER LINE CONDUCTED EMISSION ............................. 12 6.1 Block Diagram Of Test Setup ........................................... 12 6.2 Limit ................................................................. 12 6.3 Test procedure ........................................................ 12 6.4 Test Result ........................................................... 14 7. RADIATED SPURIOUS EMISSION ..................................... 16 7.1 Block Diagram Of Test Setup ........................................... 16 7.2 Limit ................................................................. 16 7.3 Test procedure ........................................................ 17 7.4 Test Result ........................................................... 18 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS ............ 40 8.1 Block Diagram Of Test Setup ........................................... 40 8.2 Limit ................................................................. 40 8.3 Test procedure ........................................................ 40 8.4 Test Result ........................................................... 41 9. COUDUCTED OUTPUT POWER ....................................... 49 9.1 Block Diagram Of Test Setup ........................................... 49 9.2 Limit ................................................................. 49 9.3 Test procedure ........................................................ 49 9.4 Test Result ........................................................... 49 10. 6DB OCCUPIED BANDWIDTH......................................... 50 10.1 Block Diagram Of Test Setup .......................................... 50 10.2 Limit ................................................................ 50 10.3 Test procedure ....................................................... 50 10.4 Test Result .......................................................... 51 11. POWER SPECTRAL DENSITY ........................................ 56 11.1 Block Diagram Of Test Setup .......................................... 56 11.2 Limit ................................................................ 56 Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB24102804303RF01 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 64 11.3 Test procedure ....................................................... 56 11.4 Test Result .......................................................... 57 12. ANTENNA REQUIREMENT ........................................... 62 13. EUT TEST SETUP PHOTOGRAPHS ................................... 63 (NOTE: N/A MEANS NOT APPLICABLE) Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB24102804303RF01 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 64 1. VERSION Report No. Issue Date Description Approved CTB24102804303RF01 Nov. 21, 2024 Original Valid Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB24102804303RF01 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 5 of 64 2. TEST SUMMARY The Product has been tested according to the following specifications: Test Item Test Requirement Test method Result AC Power Line Conducted Emission 47 CFR…

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Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: FLICAL-S2 Radiated Emission Below 1G Above 1G Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Conducted emissions