2BKBA-FRAMESmart Frame

Guangdong Changing Technology Co.,Ltd. 2.911 (d)(7)USA Agent v1.5 Section 2.911(d)(7) USA Agent for Service of Process Company name: Guangdong Changing Technology Co.,Ltd. Address: 21 Yongsheng Road, Yonghe Street, Huangpu District, Guangzhou City, Guangdong Province, China Product Name: Smart Frame FCC ID: 2BKBA-FRAME Model(s): ZN-DF-F16S,ZN-DF-F10S,ZN-DF-F11S,ZN-DF-F12S,ZN-DF-F13S,ZN-DF-F14S,ZN-DF- F15S,ZN-DF-F17S,ZN-DF-F18S,ZN-DF-F22S,ZN-DF-F24S,ZN-DF-F27S,ZN-DF-F32S 2.911(d)(7) USA Designated Agent for Service of Process We, [Guangdong Changing Technology Co.,Ltd.] (“the applicant”) designate [[Electronic Mac, Inc.] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent: We acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledge our acceptance of our obligation to maintain an agent for service of process in the United States for no less than one year after either we the grantee have permanently terminated all marketing and importation of the applicable equipment within the U.S., or at the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Agent obligation: We acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or at the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. USA Agent Company name: Electronic Mac, Inc. USA Address: 6525 Crown Blvd, # 20805, San Jose, CA 95120 FRN Number: 0033414541 Contact Name: Ray Sia Telephone No: 408-332-2399 Email: [email protected] Applicant Company name: Guangdong Changing Technology Co.,Ltd. Address: 21 Yongsheng Road, Yonghe Street, Huangpu District, Guangzhou City, Guangdong Province, China Grantee FRN Number: 0035814664 FCC Grantee Code: 2BKBA Contact Name: zhe su Telephone No: 13723440377 Email: [email protected] Guangdong Changing Technology Co.,Ltd. 2.911 (d)(7)USA Agent v1.5 Signature: Title: Manger Signature: Title: General manager Date: Aug.16, 2024 Date: Aug.16, 2024 NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

Guangdong Changing Technology Co.,Ltd. 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: Guangdong Changing Technology Co.,Ltd. Address: 21 Yongsheng Road, Yonghe Street, Huangpu District, Guangzhou City, Guangdong Province, China Product Name: Smart Frame FCC ID: 2BKBA-FRAME Model(s): ZN-DF-F16S,ZN-DF-F10S,ZN-DF-F11S,ZN-DF-F12S,ZN-DF-F13S,ZN-DF-F14S,ZN-DF-F15S,ZN-DF-F 17S,ZN-DF-F18S,ZN-DF-F22S,ZN-DF-F24S,ZN-DF-F27S,ZN-DF-F32S 2.911(d)(5)(i) Equipment Type We, [Guangdong Changing Technology Co.,Ltd.] certify that the equipment for which authorization is sought through certification is not:  Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules.  Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Name: zhe su Date: Aug.16, 2024 Title and Company name: General manager / Guangdong Changing Technology Co.,Ltd. NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Guangdong Changing Technology Co.,Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.2 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List) Company name: Guangdong Changing Technology Co.,Ltd. Address: 21 Yongsheng Road, Yonghe Street, Huangpu District, Guangzhou City, Guangdong Province, China Product Name: Smart Frame FCC ID: 2BKBA-FRAME Model(s): ZN-DF-F16S,ZN-DF-F10S,ZN-DF-F11S,ZN-DF-F12S,ZN-DF-F13S,ZN-DF-F14S,ZN-DF-F15S,ZN-DF-F 17S,ZN-DF-F18S,ZN-DF-F22S,ZN-DF-F24S,ZN-DF-F27S,ZN-DF-F32S 2.911(d)(5)(ii) Applicant filing We, [Guangdong Changing Technology Co.,Ltd.] certify that, as of the date of the filing of the application, the applicant is not identified on the “Covered List” NOTE 1 , established pursuant to § 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: zhe su Date: Aug.16, 2024 Title and Company name: General manager / Guangdong Changing Technology Co.,Ltd. NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Guangdong Changing Technology Co.,Ltd.A gent Authorization Company: Guangdong Changing Technology Co.,Ltd. Address: 21 Yongsheng Road, Yonghe Street, Huangpu District, Guangzhou City, Guangdong Province, China Product Name: Smart Frame Model Number(s): ZN-DF-F16S,ZN-DF-F10S,ZN-DF-F11S,ZN-DF-F12S,ZN-DF-F13S,ZN- DF-F14S,ZN-DF-F15S,ZN-DF-F17S,ZN-DF-F18S,ZN-DF-F22S,ZN-DF-F24S,ZN-DF- F27S,ZN-DF-F32S Product Description: Smart Frame 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: Aug.16, 2024 Name: zhe su Title: General manager Company: Guangdong Changing Technology Co.,Ltd.

FCC Software Configuration Control Declaration Rev1.1.docx Guangdong Changing Technology Co.,Ltd. FCC Software Configuration Control Declaration Date: August 20, 2024 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Attn: OET Dept. Product/ Model Number: Smart Frame ZN-DF-F16S,ZN-DF-F10S,ZN-DF-F11S,ZN-DF-F12S,ZN-DF-F13S,ZN-DF-F14S,ZN-DF-F15S,ZN- DF-F17S,ZN-DF-F18S,ZN-DF-F22S,ZN-DF-F24S,ZN-DF-F27S,ZN-DF-F32S Regarding FCC Country Code Selection guidelines identified in KDB 594280. “All applications for equipment authorization for transmitters that can have radio parameters, or other technical parameters, reported to the Commission set by software must have an attestation indicating that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified.” We declare that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified. Name: zhe su Date: Aug.16, 2024 Title: General manager Signature of applicant

Guangdong Changing Technology Co.,Ltd. Family models declaration letter. Date: August 20, 2024 We Guangdong Changing Technology Co.,Ltd. Of 21 Yongsheng Road, Yonghe Street, Huangpu District, Guangzhou City, Guangdong Province, China Product: Smart Frame Model Name: ZN-DF-F16S Serial Model: ZN-DF-F10S,ZN-DF-F11S,ZN-DF-F12S,ZN-DF-F13S,ZN-DF-F14S,ZN-DF-F15S,Z N-DF-F17S,ZN-DF-F18S,ZN-DF-F22S,ZN-DF-F24S,ZN-DF-F27S,ZN-DF-F32S Difference description of series models: All the model are the same circuit and RF module, except the model names and colors Thanks Sincerely Signature Name: zhe su Date: Aug.16, 2024 Title: General manager

Guangdong Changing Technology Co.,Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: August 20, 2024 Subject; Request for Confidentiality FCC ID: 2BKBA-FRAME 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 Software Security Requirements for UNII devices 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, Signature: Name: zhe su Title: General manager

1 / 1 铭牌长20mm 宽15mm Label

FCC ID: 2BKBA-FRAME RF Exposure evaluation According to 447498 D01 and part 2.1093 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 f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison Here, For BLE Frequency (MHz) Max power (dBm) Max power (mW) Min. distance (mm) Calculation Value Threshold Value 2402 0.50 1.12 5 0.35 3.0 For 2.4G WIFI Frequency (MHz) Max power (dBm) Max power (mW) Min. distance (mm) Calculation Value Threshold Value 2462 7.77 5.98 5 1.88 3.0 For 5.2G WIFI Frequency (MHz) Max power (dBm) Max power (mW) Min. distance (mm) Calculation Value Threshold Value 5180 7.13 5.16 5 2.34 3.0 For 5.8G WIFI Frequency (MHz) Max power (dBm) Max power (mW) Min. distance (mm) Calculation Value Threshold Value 5745 5.92 3.91 5 1.87 3.0 Operate simultaneously BLE: (1.52mW /5mm)*[√2.402(GHz)/7.5]=0.046 w/kg 2.4GWIFI: (7.52mW /5mm)*[√2.462(GHz)/7.5]=0.250 w/kg 5.2GWIFI: (5.66mW /5mm)*[√5.180(GHz)/7.5]=0.314 w/kg 5.8GWIFI: (5.65mW /5mm)*[√5.745(GHz)/7.5]=0.250 w/kg So SAR test is not required

Report No.: ET-24081078E03 This test report is valid for the tested samples only. It cannot be reproduced except in full without prior written consent of Shenzhen ETR Standard Technology Co., Ltd. TEST REPORT Applicant: Guangdong Changing Technology Co.,Ltd. Address of Applicant: 21 Yongsheng Road, Yonghe Street, Huangpu District, Guangzhou City, Guangdong Province, China Manufacturer/Factory: Guangdong Changing Technology Co.,Ltd. Address of Manufacturer 21 Yongsheng Road, Yonghe Street, Huangpu District, Guangzhou City, Guangdong Province, China Product Name: Smart Frame Model No.: ZN-DF-F16S,ZN-DF-F10S,ZN-DF-F11S,ZN-DF-F12S,ZN-DF- F13S,ZN-DF-F14S,ZN-DF-F15S,ZN-DF-F17S,ZN-DF-F18S,ZN- DF-F22S,ZN-DF-F24S,ZN-DF-F27S,ZN-DF-F32S Trade Mark: N/A FCC ID: 2BKBA-FRAME Applicable standards: FCC CFR Title 47 Part 15 Subpart E Section 15.407 Date of Test: Aug.01, 2024-Aug.23, 2024 Date of report issued: Aug.24, 2024 Remark: The results shown in this test report refer only to the sample(s) tested , this test report cannot be reproduced, except in full without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver Prepared By Shenzhen ETR Standard Technology Co., Ltd. Address: No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Compiled by: Reviewed by: Approved by: Project Engineer Project Manager Authorized Signature - Page 2 of 66 Report No.: ET-24081078E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Report Revision History Report No. Description Issue Date ET-24081078E03 Original Aug.24, 2024 - Page 3 of 66 Report No.: ET-24081078E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Contents Page 1 TEST SUMMARY ......................................................................................................................................4 1.1 MEASUREMENT UNCERTAINTY .............................................................................................................4 2 GENERAL INFORMATION .......................................................................................................................5 2.1 GENERAL DESCRIPTION OF EUT ..........................................................................................................5 2.2 TEST MODE .........................................................................................................................................7 2.3 DESCRIPTION OF SUPPORT UNITS ........................................................................................................8 2.4 DEVIATION FROM STANDARDS ..............................................................................................................8 2.5 ABNORMALITIES FROM STANDARD CONDITIONS ....................................................................................8 2.6 TEST FACILITY ....................................................................................................................................8 2.7 TEST LOCATION ..................................................................................................................................8 2.8 ADDITIONAL INSTRUCTIONS ..................................................................................................................8 3 TEST INSTRUMENTS LIST ......................................................................................................................9 4 TEST RESULTS AND MEASUREMENT DATA .....................................................................................10 4.1 ANTENNA REQUIREMENT ....................................................................................................................10 4.2 CONDUCTED EMISSIONS ....................................................................................................................11 4.3 DUTY CYCLE ......................................................................................................................................14 4.4 CONDUCTED OUTPUT POWER ............................................................................................................18 4.5 BANDWIDTH 99% OCCUPY BANDWIDTH .............................................................................................20 4.6 POWER SPECTRAL DENSITY ..............................................................................................................31 4.7 BAND EDGE .......................................................................................................................................39 4.7.1 Conducted test Method ...............................................................................................................39 4.8 SPURIOUS EMISSION .........................................................................................................................45 4.8.1 Radiated Emission Method .........................................................................................................45 4.8.2 Conducted Emission Method ......................................................................................................53 4.9 FREQUENCY STABILITY ......................................................................................................................60 5 TEST SETUP PHOTO .............................................................................................................................66 6 EUT CONSTRUCTIONAL DETAILS .......................................................................................................66 - Page 4 of 66 Report No.: ET-24081078E03 Tel:(86-755) 85259392 Email:[email protected] Web: w…

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- Page 36 of 66 Report No.: ET-24081078E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China (802.11a) PSD plot on channel 149 (802.11n20) PSD plot on channel 149 (802.11a) PSD plot on channel 157 (802.11n20) PSD plot on channel 157 (802.11a) PSD plot on channel 165 (802.11n20) PSD plot on channel 165 - Page 37 of 66 Report No.: ET-24081078E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China (802.11ac20) PSD plot on channel 149 (802.11n40) PSD plot on channel 151 (802.11ac20) PSD plot on channel 157 (802.11n40) PSD plot on channel 159 (802.11ac20) PSD plot on channel 165 - Page 38 of 66 Report No.: ET-24081078E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China (802.11ac40) PSD plot on channel 151 (802.11ac40) PSD plot on channel 159 - Page 39 of 66 Report No.: ET-24081078E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China 4.7 Band edge 4.7.1 Conducted test Method Test Requirement: FCC Part15 C Section 15.209 and 15.205 Test Method: ANSI C63.10: 2013 Limit: All emissions shall be limited to a level of −27 dBm/MHz at 75 MHz or more above or below the band edge increasing linearly to 10 dBm/MHz at 25 MHz above or below the band edge, and from 25 MHz above or below the band edge increasing linearly to a level of 15.6 dBm/MHz at 5 MHz above or below the band edge, and from 5 MHz above or below the band edge increasing linearly to a level of 27 dBm/MHz at the band edge. Test setup: Test Procedure: 1. Check the calibration of the measuring instrument using either an internal calibrator or a known signal from an external generator. 2. Position the EUT without connection to measurement instrument. Turn on the EUT and connect its antenna terminal to measurement instrument via a low loss cable. Then set it to any one measured frequency within its operating range, and make sure the instrument is operated in its linear range. 3. Set RBW of spectrum analyzer to 1 MHz with a convenient frequency span. 4. Measure the highest amplitude appearing on spectral display and set it as a reference level. Plot the graph with marking the highest point and edge frequency. 5. Repeat above procedures until all measured frequencies were complete.. Test Instruments: Refer to section 3.0 for details Test mode: Refer to section 2.2 for details Test environment: Temp.: 22.2°C Humid.: 52%RH Test voltage: DC 5V Test results: Pass Remark: Due to the margin value of the sideband test being greater than the antenna gain value, the test meets the requirements - Page 40 of 66 Report No.: ET-24081078E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China 5.180~5.240 GHz (802.11a) Band Edge, Left Side (802.11n20) Band Edge, Left Side (802.11a) Band Edge, Right Side (802.11n20) Band Edge, Right Side - Page 41 of 66 Report No.: ET-24081078E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China 5.180~5.240 GHz (802.11ac20) Band Edge, Left Side (802.11n40) Band Edge, Left Side (802.11ac20) Band Edge, Right Side (802.11n40) Band Edge, Right Side - Page 42 of 66 Report No.: ET-24081078E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China (802.11ac40) Band Edge, Left Side (802.11ac40) Band Edge, Right Side 5.745~5.825 GHz (802.11a) Band Edge, Left Side (802.11n20) Band Edge, Left Side (802.11a) Band Edge, Right Side (802.11n20) Band Edge, Right Side - Page 43 of 66 Report No.: ET-24081078E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China 5.745~5.825 GHz (802.11ac20) Band Edge, Left Side (802.11n40) Band Edge, Left Side (802.11ac20) Band Edge, Right Side (802.11n40) Band Edge, Right Side - Page 44 of 66 Report No.: ET-24081078E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China 5.745~5.825 GHz (802.11ac40) Band Edge, Left Side (802.11ac40) Band Edge, Right Side - Page 45 of 66 Report No.: ET-24081078E03 Tel:(86-755) 85259392 Email:[email protected] Web: www.etrlab.cn No.103, No.10, Phase I, Zone 3, Xinxing Industrial Park, Xinhe, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China 4.8 Spurious Emission 4.8.1 Radiated Emission Method Test Requirement: FCC Part15 C Section 15.209, Part 15E Section 15.407(b)(4) Test Method: ANSI C63.10:2013 Test Frequency Range: 9kHz to 40GHz Test site: Measurement Distance: 3m Receiver setup: Frequency Detector RBW VBW Value 9kHz-150KHz Quasi-peak 200Hz 1kHz Quasi-peak Value 150kHz-30MHz Quasi-peak 9kHz 30kHz Quasi-peak Value 30MHz-1GHz Quasi-peak 120KHz 300KHz Quasi-peak Value Above 1GHz Peak 1MHz 3MHz Peak Value AV 1MHz 3MHz Average Value Limit: Frequency Limit (uV/m) Value Measurement Distance 0.009MHz-0.490MHz 2400/F(KHz) QP 300m 0.490MHz-1.705MHz 24000/F(KHz) QP 300m 1.705MHz-30MHz 30 QP 30m 30MHz-88MHz 100 QP 3m 88MHz-216MHz 150 QP 216MHz-960MHz 200 QP 960MHz-1GHz 500 QP Frequency Limit (dBm/MHz) Remark Above 1GHz -27.0 Peak Value Test setup: For radiated emissions from …

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