2BAW5-MYDY25Z-1Smart windows blinds

                                   

Mingyang Windeco Technology Corporation No.2 Xianfeng Road Mazhai Industrial Zone, Erqi District Zhengzhou, 450000 Henan Province, China The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 04/22/2023 U.S. Agent Designation Mingyang Windeco Technology Corporation acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2BAW5-MYDY25Z-1): Name and company of U.S. agent: Helio Window Fashions LLC Physical U.S. address of agent: 8 The Green, Suite A in the City of Dover, Delaware 19901 USA FRN of U.S. agent: 0033678103 Email address of U.S. agent: [email protected] Helio Window Fashions LLC acknowledges their obligation to accept service of process on behalf of Mingyang Windeco Technology Corporation. Mingyang Windeco Technology Corporation with the FRN 0033678079 accepts its obligation to maintain an agent for service of process in the United States 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 the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). Sincerely, Signature Signature [Name]: Junxiang Yan [Name of U.S. agent]: Han Zhang [Title]: Manager [Title of U.S. agent]: Manager [Company]: Mingyang Windeco Technology Corporation [Company of U.S. agent]: Helio Window Fashions LLC 48_[mo del] US_Agent_2.911(d)(7) - U, V04

Sincerely, Name/Title： Junxiang Yan/Manager Company: Mingyang Windeco Technology Corporation Address: No.2 Xianfeng Road Mazhai Industrial Zone, Erqi District Zhengzhou, 450000 Henan Province, China Phone: 13723704785 Fax: N/A E-Mail: [email protected]

FCC ID: 2BAW5-MYDY25Z-1 External Photos of the EUT Photo 1 Photo 2 Photo 3 FCC ID: 2BAW5-MYDY25Z-1 Photo 4 Photo 5 Photo 6 FCC ID: 2BAW5-MYDY25Z-1 Photo 7 Photo 8 Photo 9 FCC ID: 2BAW5-MYDY25Z-1 Photo 10 Photo 11 Photo 12 FCC ID: 2BAW5-MYDY25Z-1 Photo 13 Photo 14 Photo 15 FCC ID: 2BAW5-MYDY25Z-1 Photo 16

Label and Location Size: L: 2.0cm*W: 1.0cm Label and Location Model No.: MYDY25Z-1 FCC ID : 2BAW5-MYDY25Z-1

FCC ID: 2BAW5-MYDY25Z-1 Internal Photos of the EUT Photo 1 Photo 2 Photo 3 FCC ID: 2BAW5-MYDY25Z-1 Photo 4 Photo 5 Photo 6 Zigbee Internal Antenna 433 Receiving ceramic antenna FCC ID: 2BAW5-MYDY25Z-1 Photo 7 Photo 8 Photo 9 FCC ID: 2BAW5-MYDY25Z-1 Photo 10 Photo 11 Photo 12 FCC ID: 2BAW5-MYDY25Z-1 Photo 13 Photo 14 Photo 15 FCC ID: 2BAW5-MYDY25Z-1 Photo 16

RF Exposure evaluation FCC ID: 2BAW5-MYDY25Z-1 Exposure category: General population/uncontrolled environment EUT Type: Production Unit Device Type: Mobile Device 1. Reference According to §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. According to §1.1310 and §2.1091 RF exposure is calculated. KDB447498 D01: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 2. Limit Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 1842/f 61.4 / / 1.63 4.89/f 0.163 / / (100) * (900/f 2 )* 1.0 f/300 5 6 6 6 6 6 Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 824/f 27.5 / / 1.63 2.19/f 0.073 / / (100) * (180/f 2 )* 0.2 f/1500 1.0 30 30 30 30 30 F=frequency in MHz *=Plane-wave equivalent power density 3. MPE Calculation Method Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4πR² 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 4. Antenna Information MYDY25Z-1 can only use antennas certificated as follows provided by manufacturer; Antenna No. Model No. of antenna: Type of antenna: Gain of the antenna (Max.) Frequency range: Zigbee / Internal antenna 1.45dBi for 2400-2500MHz; 5. Manufacturing Tolerance Zigbee OQPSK (Peak) Channel Channel 11 Channel 18 Channel 26 Target (dBm) 2.0 2.0 2.0 Tolerance ±(dB) 1.0 1.0 1.0 6. Standalone MPE Result As declared by the Applicant, the EUT is a wireless device used in a fix application, at least 20 cm from any body part of the user or nearby persons; from the maximum EUT RF output power, the minimum separation distance, r =20cm, as well as the gain of the used antenna is 1.45dBi, the RF power density can be obtained. Modulation Type Output power Antenna Gain (dBi) Antenna Gain (linear) MPE (mW/cm 2 ) MPE Limits (mW/cm 2 ) dBm mW Zigbee 3.0 1.9953 1.45 1.3964 0.0006 1.0000 Remark: 1. Output power (Peak) including turn-up tolerance; 2. MPE evaluate distance is 20cm from user manual provide by manufacturer. 7. Conclusion The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF Exposure of mobile device. ----------------THE END OF REPORT---------------

1. Antenna Description: Antenna type Internal antenna Model MYDY25Z-1 Frequency range 2400-2500MHz Manufacturer Mingyang Windeco Technology Corporation ANT Peak Gain 1.45 dBi 2. Antenna Photo: Length :190.00mm 3. Test Equipment & Conditions 3.1 Test instrument VSWR is tested using Agilent E5071B connected to a hand mechanism, and the status is free space. 3.2 Test environment and methods 4．Antenna Radiation Pattern 2400MHz 2450MHz 2500MHz

Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao‘an District, Shenzhen, China Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No. ..................... : FCC ID. ........................................... : CTA23031500601 2BAW5-MYDY25Z-1 Compiled by ( position+printed name+signature) .. : File administrators Zoey Cao Supervised by ( position+printed name+signature) .. : Project Engineer Amy Wen Approved by ( position+printed name+signature) .. : RF Manager Eric Wang Date of issue ..................................... : Mar. 21, 2023 Testing Laboratory Name .............. : Shenzhen CTA Testing Technology Co., Ltd. Address ............................................ : Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao‘an District, Shenzhen, Chin Applicant’s name ............................ : Mingyang Windeco Technology Corporation Address ............................................ : No.2 Xianfeng Road Mazhai Industrial Zone, Erqi District Zhengzhou, 450000 Henan Province, China Test specification ...........................: Standard ........................................... : FCC Part 15.247 Shenzhen CTA Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTA Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTA Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Equipment description ................... : Smart windows blinds Trade Mark ....................................... : MYSHADE/CHANGSHADE Manufacturer .................................... : Mingyang Windeco Technology Corporation Model/Type reference....................... : MYDY25Z-1 Listed Models .................................. : MYDY25 Modulation ....................................... : OQPSK (DSSS) Frequency .......................................... From 2405MHz to 2480MHz Ratings ............................................. : DC 7.2V From Battery and DC 5.0V From external circuit Result................................................ : PASS Report No.: CTA23031500601 Page 2 of 41 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn T E S T R E P O R T Equipment under Test : Smart windows blinds Model /Type : MYDY25Z-1 Listed Models : MYDY25 Applicant : Mingyang Windeco Technology Corporation Address : No.2 Xianfeng Road Mazhai Industrial Zone, Erqi District Zhengzhou, 450000 Henan Province, China Manufacturer : Mingyang Windeco Technology Corporation Address : No.2 Xianfeng Road Mazhai Industrial Zone, Erqi District Zhengzhou, 450000 Henan Province, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: CTA23031500601 Page 3 of 41 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn Contents 1 T E S T S T A N D A R D S .................................................................. 4 2 S U M M A R Y ............................................................................. 5 2.1 General Remarks 5 2.2 Product Description 5 2.3 Equipment Under Test 5 2.4 Short description of the Equipment under Test (EUT) 5 2.5 EUT operation mode 6 2.6 Block Diagram of Test Setup 6 2.7 Related Submittal(s) / Grant (s) 6 2.8 Modifications 6 3 T E S T E N V IR O N M E N T ............................................................... 7 3.1 Address of the test laboratory 7 3.2 Test Facility 7 3.3 Environmental conditions 7 3.4 Summary of measurement results 8 3.5 Statement of the measurement uncertainty 8 3.6 Equipments Used during the Test 9 4 T E S T C O N D I T I O N S A N D R E S U L T S ............................................ 10 4.1 AC Power Conducted Emission 10 4.2 Radiated Emissions and Band Edge 13 4.3 Maximum Peak Output Power 20 4.4 Power Spectral Density 21 4.5 6dB Bandwidth 23 4.6 Out-of-band Emissions 25 4.7 Antenna Requirement 29 5 T E S T S E T U P P H O T O S O F T H E E U T .......................................... 30 6 P H O T O S OF T H E E U T ............................................................. 31 Report No.: CTA23031500601 Page 4 of 41 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 1 T E S T S T A N D A R D S The tests were performed according to following standards: FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz. ANSI C63.10-2013: American National Standard for Testing Unlicensed Wireless Devices KDB558074 D01 V05r02: Guidance for Performing Compliance Measurements on Digital Transmission Systems (DTS) Operating Under §15.247 Report No.: CTA23031500601 Page 5 of 41 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-ma…

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FCC ID: 2BAW5-MYDY25Z-1 Test Setup Photos of the EUT