2BFFD-YXZBRB58Smart Device

- Shenzhen Xiangchuangye Intelligent Industry Co., Ltd - Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 3/25/2024 U.S. Agent Designation [Shenzhen Xiangchuangye Intelligent Industry Co., Ltd] 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: [2BFFD-YXZBRB58]): Name and company of U.S. agent: AOCE Corporation Inc. Physical U.S. address of agent: 6547 N Academy Bivd #2266, Colorado Springs, CO, 80918 United States FRN of U.S. agent: 0033401381 Email address of U.S. agent: [email protected] [AOCE Corporation Inc.] acknowledges their obligation to accept service of process on behalf of [Shenzhen Xiangchuangye Intelligent Industry Co., Ltd]. [Shenzhen Xiangchuangye Intelligent Industry Co., Ltd] with the FRN [0035116979] 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). 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. Sincerely, Signature [Name] Yan Zhang [Title] Sales manager [Company] Shenzhen Xiangchuangye Intelligent Industry Co., Ltd Signature [Name of U.S. agent] Johnson.wang [Title of U.S. agent] Manager [Company of U.S. agent] AOCE Corporation Inc. 48_[mo del] US_Agent_2.911(d)(7) - U, V04

Shenzhen Xiangchuangye Intelligent Industry Co., Ltd 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. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 3/20/2024 To whom it may concern: We, [Shenzhen Xiangchuangye Intelligent Industry Co., Ltd], hereby certify that the equipment for which authorization is sought (FCC ID: [2BFFD-YXZBRB58]) is not “covered” equipment prohibited from receiving an equipment authorization pursuant to § 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, we are not identified on the Covered List (https://www.fcc.gov/supplychain/coveredlist ) as an entity producing “covered” equipment. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(b) and (d)(5) and (6). Sincerely, Signature [Name] Yan Zhang [Title] Sales manager [Company] Shenzhen Xiangchuangye Intelligent Industry Co., Ltd 62_[model] CoveredEqu_2.911(d)(5)(i) and (ii) - U, V02

Label Location On EUT Label Product Name: Smart Device Model Number: YXZBRB58 FCC ID: 2BFFD-YXZBRB58 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.

RF EXPOSURE EVALUATION According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b) FCC ID: 2BFFD-YXZBRB58 EUT Specification EUT Smart Device Frequency band (Operating) WLAN: 2.412GHz ~ 2.462GHz WLAN: 5.18GHz ~ 5.24GHz WLAN: 5.745GHz ~ 5.825GHz Others: 2.405GHz~2.480GHz Device category Portable (<20cm separation) Mobile (>20cm separation) Others ___ Exposure classification Occupational/Controlled exposure (S = 5mW/cm2) General Population/Uncontrolled exposure (S=1mW/cm2) Antenna diversity Single antenna Multiple antennas Tx diversity Rx diversity Tx/Rx diversity Max. output power 10.56 dBm (0.0114W) Antenna gain (Max) -0.68 dBi Evaluation applied MPE Evaluation SAR Evaluation Limits for Maximum Permissible Exposure(MPE) Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density(mW/cm 2 ) Average Time (A) Limits for Occupational/Control Exposures 300-1500 -- -- F/300 6 1500-100000 -- -- 5 6 (B) Limits for General Population/Uncontrol Exposures 300-1500 -- -- F/1500 6 1500-100000 -- -- 1 30 Friis transmission formula: Pd=(Pout*G)\(4*pi*R2) Where Pd= Power density in mW/cm 2 Pout=output power to antenna in Mw G= gain of antenna in linear scale Pi=3.1416 R= distance between observation point and center of the radiator in cm Pd the limit of MPE, 1mW/cm2. If we know the maximum gain of the antenna and total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. Measurement Result Operating Mode Channel Frequency (MHz) Measured Power (dBm) Tune up tolerance (dBm) Max. Tune up Power (dBm) Antenna Gain (dBi) Power density at 20cm (mW/ cm 2 ) Power density Limits (mW/cm 2 ) Zigbee 2405 10.19 10.19±1 11.19 -0.68 0.0022 1 2440 10.56 10.56±1 11.56 -0.68 0.0024 1 2480 10.45 10.45±1 11.45 -0.68 0.0024 1 Pass

Page 1 of 24 Report No. 8225EU122202W-AD ANNEX D TEST DATA For Project No.: 8225EU122202W Client: Shenzhen Xiangchuangye Intelligent Industry Co., Ltd Product Description: Smart Device Model No.: YXZBRB58 FCC ID: 2BFFD-YXZBRB58 Technology: Zigbee Test Engineer: Test Date: 2024-02-20 Page 2 of 24 Report No. 8225EU122202W-AD Test Summary Item Result Duty Cycle Pass Bandwidth Pass Maximum Conducted Output Power Pass Maximum Power Spectral Density Pass Unwanted Emissions In Non-restricted Frequency Bands Pass Page 3 of 24 Report No. 8225EU122202W-AD 1. Duty Cycle 1.1 Ant1 1.1.1 Test Result Ant1 Mode TX Type Frequency (MHz) T_on (ms) Period (ms) Duty Cycle (%) Duty Cycle Correction Factor (dB) Max. DC Variation (%) Zigbee SISO 2405 0.530 10.653 4.98 13.03 0.03 2440 0.530 10.650 4.98 13.03 0.06 2480 0.530 10.650 4.98 13.03 0.06 Page 4 of 24 Report No. 8225EU122202W-AD 1.1.2 Test Graph Zigbee_LCH_2405MHz_Ant1_NTNV Zigbee_MCH_2440MHz_Ant1_NTNV Page 5 of 24 Report No. 8225EU122202W-AD Zigbee_HCH_2480MHz_Ant1_NTNV Page 6 of 24 Report No. 8225EU122202W-AD 2. Bandwidth 2.1 OBW 2.1.1 Test Result Mode TX Type Frequency (MHz) ANT 99% Occupied Bandwidth (MHz) Verdict Result Zigbee SISO 2405 1 2.206 Pass 2440 1 2.209 Pass 2480 1 2.211 Pass Page 7 of 24 Report No. 8225EU122202W-AD 2.1.2 Test Graph Zigbee_LCH_2405MHz_Ant1_NTNV Zigbee_MCH_2440MHz_Ant1_NTNV Page 8 of 24 Report No. 8225EU122202W-AD Zigbee_HCH_2480MHz_Ant1_NTNV Page 9 of 24 Report No. 8225EU122202W-AD 2.2 6dB BW 2.2.1 Test Result Mode TX Type Frequency (MHz) ANT 6dB Bandwidth (MHz) Verdict Result Limit Zigbee SISO 2405 1 1.109 >=0.5 Pass 2440 1 1.150 >=0.5 Pass 2480 1 1.153 >=0.5 Pass Page 10 of 24 Report No. 8225EU122202W-AD 2.2.2 Test Graph Zigbee_LCH_2405MHz_Ant1_NTNV Zigbee_MCH_2440MHz_Ant1_NTNV Page 11 of 24 Report No. 8225EU122202W-AD Zigbee_HCH_2480MHz_Ant1_NTNV Page 12 of 24 Report No. 8225EU122202W-AD 3. Maximum Conducted Output Power 3.1 Power 3.1.1 Test Result Mode TX Type Frequency (MHz) Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit Zigbee SISO 2405 10.19 <=30 Pass 2440 10.56 <=30 Pass 2480 10.45 <=30 Pass Page 13 of 24 Report No. 8225EU122202W-AD 3.1.2 Test Graph Zigbee_LCH_2405MHz_Ant1_NTNV Zigbee_MCH_2440MHz_Ant1_NTNV Page 14 of 24 Report No. 8225EU122202W-AD Zigbee_HCH_2480MHz_Ant1_NTNV Page 15 of 24 Report No. 8225EU122202W-AD 4. Maximum Power Spectral Density 4.1 PSD 4.1.1 Test Result Mode TX Type Frequency (MHz) Maximum PSD (dBm/3kHz) Verdict ANT1 Limit Zigbee SISO 2405 -0.43 <=8 Pass 2440 -0.02 <=8 Pass 2480 -0.30 <=8 Pass Page 16 of 24 Report No. 8225EU122202W-AD 4.1.2 Test Graph Zigbee_LCH_2405MHz_Ant1_NTNV Zigbee_MCH_2440MHz_Ant1_NTNV Page 17 of 24 Report No. 8225EU122202W-AD Zigbee_HCH_2480MHz_Ant1_NTNV Page 18 of 24 Report No. 8225EU122202W-AD 5. Unwanted Emissions In Non-restricted Frequency Bands 5.1 Ref 5.1.1 Test Result Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) Zigbee SISO 2405 1 9.40 2440 1 10.37 2480 1 10.25 Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. Page 19 of 24 Report No. 8225EU122202W-AD 5.1.2 Test Graph Zigbee_LCH_2405MHz_Ant1_NTNV Zigbee_MCH_2440MHz_Ant1_NTNV Page 20 of 24 Report No. 8225EU122202W-AD Zigbee_HCH_2480MHz_Ant1_NTNV Page 21 of 24 Report No. 8225EU122202W-AD 5.2 CSE 5.2.1 Test Result Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) Limit (dBm) Verdict Zigbee SISO 2405 1 10.37 -9.63 Pass 2440 1 10.37 -9.63 Pass 2480 1 10.37 -9.63 Pass Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. Page 22 of 24 Report No. 8225EU122202W-AD 5.2.2 Test Graph Zigbee_LCH_2405MHz_Ant1_NTNV Zigbee_LCH_2405MHz_Ant1_NTNV Page 23 of 24 Report No. 8225EU122202W-AD Zigbee_MCH_2440MHz_Ant1_NTNV Zigbee_HCH_2480MHz_Ant1_NTNV Page 24 of 24 Report No. 8225EU122202W-AD Zigbee_HCH_2480MHz_Ant1_NTNV --------- End of Report -------

TEST REPORT Report No.: 8225EU122202W Applicant: Shenzhen Xiangchuangye Intelligent Industry Co., Ltd Address: 4th Floor, Building C, Block B, Baoying Industrial Park, No.21 Wulian Road, Longxi Street, Longgang District, Shenzhen, Guangdong, China. Product Name: Smart Device Model No.: YXZBRB58 (refer to clause 2.4) Trademark: N/A FCC ID: 2BFFD-YXZBRB58 Test Standard(s): 47 CFR Part 15 Subpart C Date of Receipt: Jan. 22, 2024 Test Date: Jan. 22, 2024 – Feb. 21, 2024 Date of Issue: Mar. 20, 2024 ISSUED BY: SHENZHEN EU TESTING LABORATORY LIMITED Prepared by: Reviewed and Approved by: ____________________ _____________________ Mikey Zhu/ Engineer Sally Zhang/ Manager Page 2 of 32 Report No.: 8225EU122202W TRF No.: FCC Part 15 Subpart C_Zigbee (A01) Revision Record Report Version Issued Date Description Status V0 Mar. 20, 2024 Original Valid Page 3 of 32 Report No.: 8225EU122202W TRF No.: FCC Part 15 Subpart C_Zigbee (A01) Table of Contents 1 COVER PAGE .................................................................................................................................. 1 2 GENERAL INFORMATION ...................................................................................................................... 5 2.1 APPLICANT INFORMATION .................................................................................................................. 5 2.2 MANUFACTURER INFORMATION .......................................................................................................... 5 2.3 FACTORY INFORMATION ..................................................................................................................... 5 2.4 GENERAL DESCRIPTION OF E.U.T. ..................................................................................................... 5 2.5 TECHNICAL INFORMATION OF E.U.T. .................................................................................................. 6 3 TEST SUMMARY ...................................................................................................................................... 7 3.1 TEST STANDARD ............................................................................................................................... 7 3.2 TEST VERDICT ................................................................................................................................... 7 3.3 TEST LABORATORY ........................................................................................................................... 7 4 TEST CONFIGURATION .......................................................................................................................... 8 4.1 TEST ENVIRONMENT .......................................................................................................................... 8 4.2 TEST EQUIPMENT .............................................................................................................................. 8 4.3 DESCRIPTION OF SUPPORT UNIT ........................................................................................................ 9 4.4 TEST MODE ...................................................................................................................................... 9 4.5 MEASUREMENT UNCERTAINTY ........................................................................................................... 9 4.6 DEVIATION FROM STANDARDS ........................................................................................................... 9 4.7 ABNORMALITIES FROM STANDARD CONDITION ................................................................................... 9 5 TEST ITEMS ........................................................................................................................................... 10 5.1 ANTENNA REQUIREMENT .................................................................................................................. 10 5.1.1 Test Requirement ........................................................................................................... 10 5.1.2 Antenna Anti-Replacement Construction ........................................................................ 10 5.1.3 Antenna Gain .................................................................................................................. 10 5.2 CONDUCTED EMISSION AT AC POWER LINE ..................................................................................... 11 5.2.1 Test Requirement ........................................................................................................... 11 5.2.2 Test Setup Diagram ........................................................................................................ 11 5.2.3 Test Procedure ............................................................................................................... 11 5.2.4 Test Data......................................................................................................................... 11 5.3 DTS BANDWIDTH ............................................................................................................................ 14 5.3.1 Test Requirement ........................................................................................................... 14 5.3.2 Test Setup Diagram ........................................................................................................ 14 5.3.3 Test Procedure ............................................................................................................... 14 5.3.4 Test Data......................................................................................................................... 14 5.4 MAXIMUM CONDUCTED OUTPUT POWER .......................................................................................... 15 5.4.1 Test Requirement ........................................................................................................... 15 5.4.2 Test Setu…

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version01 Shenzhen Xiangchuangye Intelligent Industry Co., Ltd Declaration concerning Antenna Specification It i s hereby declared that the product Model No.: YXZBRB58, YXZBCI, YXMNSW-01, YXZBTHP-1, YXZNWH, YXZBSL, YXNETIR-1, YXHUBZM-1, YXZBPIR-01, YXZBD-1, YXZBW-1 FCC ID: 2BFFD-YXZBRB58 fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for PCB antenna type(s) described below: Model No. of antenna: G1-S5S _ Type of antenna: PCB Antenna Gain of the antenna: -0.68 dBi Frequency range: 2400-2500 MHz The mounting of the antenna is fixed to the radio module and no other antenna should be used. Company name: Shenzhen Xiangchuangye Intelligent Industry Co., Ltd Address: 4th Floor, Building C, Block B, Baoying Industrial Park, No.21 Wulian Road, Longxi Street, Longgang District, City: Shenzhen, Guangdong ZIP / Postal code: Country: China Place: Place: Date: 2024-03-20 Signature:

Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.73-0.84-0.68-6.15-3.70-2.32 MAX. Gain -0.68dBi PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length 38.20mm Manufacture Shenzhen new Haitang Technology Co., LTD\ Antenna Photo & Length (mm) Address Shenzhen Baoan District Xixiang Street Tiegang Reservoir Road Taohuayuan Science and Technology Innovation Ecological Park (four sub-park) B1 floor 4 Antenna Type PCB Antenna Model G1-S5S Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.73178 -30.0815 -8.48713 2450 -0.845801 -38.5605 -7.88012 2500 -0.685586 -24.0318 -6.79139 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -6.1530 -24.1420 -13.0295 2450 -3.7054 -26.5836 -10.6700 2500 -2.32122 -30.4301 -9.70536 ANT Test Labs：Attestation of Global Compliance Co., Ltd.