2ADZTDRAGONFLYDragonfly

HULK-10 HULK-10 FCC Caution: 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 .This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. Dragonfly

ARICH INTERNATIONAL INC Address: 360 SUMMERVIEW CT SAN RAMON CA 94583-4463, SAN RAMON, California, United States 945834463 Tel.: 886975896312 Fax: 4083207168 E- mail: [email protected] D ate: 2022-11-07 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attestation letter Dear Sir or Madam, We, ARICH INTERNATIONAL INC, declare that our product name：Dragonfly, Model Number: HULK-10, FC C ID: 2ADZTDRAGONFLY, which module (Model: RL-SM02F-8822BS) supports BDR(GFSK) /EDR(π/4- DQPSK) /EDR(8DPSK), and 2.4G Wi-Fi ( DSSS, OFDM), for marketing purpose, other functions have been shielded by manufacturer though software and the end user can not have the capability to activate these functions. S incerely, Signature: N ame: Ariel Chu Title: Project Manager

ARICH INTERNATIONAL INC Address: 360 SUMMERVIEW CT SAN RAMON CA 94583-4463，SAN RAMON, California, United States 945834463 Tel.: 886975896312 Fax: 4083207168 E-mail: ariel@tun ai-creative.com FCC Authorization Date: 2022-11-07 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We, ARICH INTERNATIONAL INC hereby authorize Shenzhen Accurate Technology Co., Ltd. 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 Shenzhen Accurate Technology Co., Ltd. on our behalf shall have the same effect as our own action. We, ARICH INTERNATIONAL INC 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 Yours, Signature Name: Ariel Chu Title: Project Manager QA-FR-170-B

ARICH INTERNATIONAL INC Address: 360 SUMMERVIEW CT SAN RAMON CA 94583-4463, SAN RAMON, California, United States Tel.: 886975896312 Fax: 4083207168 E-mail: [email protected] FCC Confidential Authorization Date: 2022-11-07 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2ADZTDRAGONFLY In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, ARICH INTERNATIONAL INC 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 Yours, Signature Name: Ariel Chu Title: Project Manager

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Shenzhen Accurate Technology Co., Ltd. Report No.: SZNS2220914-41668E-RF-00A Version 11: 2021-11-09 Page 10 of 59 FCC-BT FCC §1.1310 & §2.1091 –RF EXPOSURE EVALUATION Applicable Standard According to KDB 447498 D04 Interim General RF Exposure Guidance v01, clause 2.1.4 –MPE-Based Exemption: An alternative to the SAR-based exemption is provided in § 1.1307(b)(3)(i)(C), for a much wider frequency range, from 300 kHz to 100 GHz, applicable for separation distances greater or equal to λ/2π, where λ is the free-space operating wavelength in meters. The MPE-based test exemption condition is in terms of ERP, defined as the product of the maximum antenna gain and the delivered maximum time-averaged power. For this case, a RF source is an RF exempt device if its ERP (watts) is no more than a frequency-dependent value, as detailed tabular form in Appendix B. These limits have been derived based on the basic specifications on Maximum Permissible Exposure (MPE) considered for the FCC rules in § 1.1310(e)(1). Table to § 1.1307(b)(3)(i)(C) - Single RF Sources Subject to Routine Environmental Evaluation f = frequency in MHz; R = minimum separation distance from the body of a nearby person (appropriate units, e.g., m); For multiple RF sources: Multiple RF sources are exempt if: in the case of fixed RF sources operating in the same time-averaging period, or of multiple mobile or portable RF sources within a device operating in the same time averaging period, if the sum of the fractional contributions to the applicable thresholds is less than or equal to 1 as indicated in the following equation: Shenzhen Accurate Technology Co., Ltd. Report No.: SZNS2220914-41668E-RF-00A Version 11: 2021-11-09 Page 11 of 59 FCC-BT Test Result For worst case: Mode Frequency Range (MHz) Tune-up Output Power Antenna Gain ERP Evaluation Distance (cm) ERP Limit (mW) (dBm) (mW) (dBi) (dBd) (dBm) (mW) BDR/EDR 2402-2480 4.5 2.82 3.2 1.05 5.55 3.59 20 768 2.4G Wi-Fi 2412-2462 20 100 3.2 1.05 21.05 127.35 20 768 Note 1: The tune-up power was declared by the applicant. Note 2: 0dBd=2.15dBi. Note 3: The BT function can’t transmit at the same time with the 2.4G Wi-Fi function. To maintain compliance with the FCC’s RF exposure guidelines, place the equipment at least 20cm from nearby persons. Result: Compliant.

Shenzhen Qianmu Communication Technology Co.,Ltd. No. 425.443, 4th Floor, Building A, Huafeng Zhigu-Hangcheng High-tech Industrial Park, Hangcheng Road, Sanwei Community, Hangcheng Street, Baoan District, Shenzhen Antenna Acceptance Letter Applicable models 2.4G WIFI Antenna Customer Specifications describe Product content specification Customer Material Code Specifications describe 2.4G antenna On‐board antenna Model: A17W Change the resume No Date Vension Description of Changes 1 2020‐9‐02 V1.0 new project 2 3 Supplier sample confirmation R&D Structure Audit Determine PASS FAIL Customer sample confirmation Electronic Struture Project Purchase Quality Audit Reasons for rejection or other considerations: 第 1 页 1. Specification (1）.Electrical performance parameter Frequency Range........................................2400MHz ~2500MHz VSWR..................................................................................... <3  Efficiency.................................................................... Max59.37%  Peak Gain................................................................... Max3.2dBi  Polarization.......................................................................... Linear  Input Impedance.............................................................. 50Ω                第 2 页 2.Antenna standing wave pattern： 第 3 页 Band WIFI ANT 1 2400 2500 R.L(dB) -9.5 -7.6 VSWR 2.4 2.5 Band WIFI ANT 2 2400 2500 R.L(dB) -11.5 -10.3 VSWR 1.7 1.8 第 4 页 3.WIFI Antenna gain efficiency： Passive Test For 2.4GWIFI ANT1 Freq Effi Effi Gain Gain UHIS DHIS Max Min Attenut Attenut (MHz) (%) (dB) (dBi) (dBd)(%) (%) (dB)(dB) Hor Ver 2400 61.52 -2.11 2.22 0.07 35.571 25.949 2.22 -27.55 48.51 48.38 2410 64.06 -1.93 2.29 0.14 36.742 27.314 2.29 -25.53 48.83 48.65 2420 66.12 -1.8 2.38 0.23 37.612 28.512 2.38 -22.28 49.05 49 2430 65.81 -1.82 2.26 0.11 37.346 28.461 2.26 -20.6 49.05 48.89 2440 65.35 -1.85 2.02 -0.13 37.17 28.18 2.02 -20.01 49.08 48.97 2450 65.38 -1.85 2.07 -0.08 37.527 27.856 2.07 -20.5 49.01 48.85 2460 64.41 -1.91 1.98 -0.17 37.405 27.004 1.98 -22.62 48.86 48.7 2470 63.62 -1.96 2.02 -0.13 37.359 26.262 2.02 -25.86 48.86 48.78 2480 67.12 -1.73 2.4 0.25 39.779 27.344 2.4 -24.33 49.29 49.19 2490 73.47 -1.34 2.97 0.82 43.799 29.668 2.97 -20.77 49.92 49.75 2500 75.94 -1.2 3.2 1.05 45.483 30.452 3.2 -20.26 49.95 49.77 Passive Test For 2.4GWIFI ANT2 Freq Effi Effi Gain Gain UHIS DHIS MaxMin Attenut Attenut (MHz) (%) (dB) (dBi) (dBd)(%) (%) (dB)(dB) Hor Ver 2400 43.67 -3.6 1.33 -0.82 17.608 26.061 1.33 -21.22 48.51 48.38 2410 48.5 -3.14 1.89 -0.26 19.797 28.704 1.89 -20.13 48.83 48.65 2420 50.88 -2.93 2.19 0.04 20.82 30.065 2.19 -18.81 49.05 49 2430 50.78 -2.94 2.16 0.01 20.611 30.164 2.16 -17.91 49.05 48.89 2440 49.58 -3.05 2.01 -0.14 19.805 29.78 2.01 -17.2 49.08 48.97 2450 50.46 -2.97 2.01 -0.14 19.63 30.827 2.01 -17.07 49.01 48.85 2460 47.3 -3.25 1.65 -0.5 17.888 29.413 1.65-17 48.86 48.7 2470 47.61 -3.22 1.68 -0.47 17.549 30.06 1.68 -17.06 48.86 48.78 2480 49.95 -3.01 1.92 -0.23 18.183 31.77 1.92 -16.93 49.29 49.19 2490 58.24 -2.35 2.71 0.56 21.081 37.157 2.71 -15.74 49.92 49.75 2500 57.18 -2.43 2.73 0.58 20.791 36.394 2.73 -15.34 49.95 49.77 第 5 页 4.Product picture： 5.Apple figure： （1）.ANT1‐ 2.4GWiFi 第 6 页

Note: This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “★”. Shenzhen Accurate Technology Co., Ltd. is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. Shenzhen Accurate Technology Co., Ltd. 1/F., Building A, Changyuan New Material Port, Science & Industry Park, Nanshan District, Shenzhen, Guangdong, P.R. China Tel: +86 755-26503290 Fax: +86 755-26503396 Web: www.atc-lab.com Version 11: 2021-11-09 Page 1 of 59 FCC-BT TEST REPORT Applicant Name : ARICH INTERNATIONAL INC Address : 360 SUMMERVIEW CT SAN RAMON CA 94583-4463, SAN RAMON, California, United States 945834463 Report Number : SZNS2220914-41668E-RF-00A FCC ID: 2ADZTDRAGONFLY Test Standard (s) FCC PART 15.247 Sample Description Product Type: Dragonfly Model No.: HULK-10 Trade Name TUNAI Date Received: 2022-09-14 Date of Test: 2022-09-21 to 2022-11-23 Report Date: 2022-11-28 Test Result: Pass* * In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Roger.Ling Candy Li EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: SZNS2220914-41668E-RF-00A Version 11: 2021-11-09 Page 2 of 59 FCC-BT TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 SPECIAL ACCESSORIES ................................................................................................................................................. 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 6 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 8 TEST EQUIPMENT LIST ........................................................................................................................................... 9 FCC §1.1310 & §2.1091 –RF EXPOSURE EVALUATION .................................................................................... 10 APPLICABLE STANDARD ............................................................................................................................................ 10 TEST RESULT ............................................................................................................................................................. 11 FCC §15.203 – ANTENNA REQUIREMENT .......................................................................................................... 12 APPLICABLE STANDARD ............................................................................................................................................ 12 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 12 FCC §15.205, §15.209 & §15.247(d) – RADIATED EMISSIONS ........................................................................... 13 APPLICABLE STANDARD ............................................................................................................................................ 13 EUT SETUP ................................................................................................................................................................ 13 EMI TEST RECEIVER & SPECTRUM ANALYZER SETUP .............................................................................................. 14 TEST PROCEDURE ...................................................................................................................................................... 14 FACTOR & MARGIN CALCULATION ..................................................................................................…

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Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS2220914-41668E-RF Page 1 of 1 Photo of Radiated Emission Measurement Below 1GHz Photo of Radiated Emission Measurement Above 1GHz