2BFP5-BGDWBWireless Receiver Transmitter Products

Attestation Statements (April 7, 2024) TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for (FCC ID: 2BFP5-BGDWB ) (Shenzhen Jinsuifangyuan Technology Co.,Ltd), the undersigned, hereby authorize (NEWENERGYER LIMITED) to act as our designated U.S. agent for service of process, (Shenzhen Jinsuifangyuan Technology Co.,Ltd) accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. (NEWENERGYER LIMITED) accepts the responsibility to act as designated U.S. agent for service of process, provides an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Information： Company name: Shenzhen Jinsuifangyuan Technology Co.,Ltd Contact Name: Xu Bin Address: 4th Floor, No. 2, Xinshiqiao Street, Guihua Community Guanlan, Longhua District, Shenzhen, Guangdong, China Telephone No: 13538214502 Email: [email protected] FRN: 0035247402 Signature [Xu Bin] U.S. Agent Information: Company Name: NEWENERGYER LIMITED Address: 1818 S Patton Ct, Denver, CO, 80219 Contact Name: CHUN LIU Telephone No: 213 289 5042 Email: [email protected] FRN: 0034665885 Signature [CHUN LIU]

(Shenzhen Jinsuifangyuan Technology Co.,Ltd) (April 7, 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: 2BFP5-BGDWB) [Shenzhen Jinsuifangyuan 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) Xu Bin (Shenzhen Jinsuifangyuan Technology Co.,Ltd) (April 7, 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: 2BFP5-BGDWB) [Shenzhen Jinsuifangyuan 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) Xu Bin

Shenzhen Jinsuifangyuan Technology Co.,Ltd Model Difference Data：April 7, 2024 Product description: Wireless Receiver Transmitter Products Model name: BG-dw-b, BG-dw-w, BG-DW001, BG-DW002, BG-DW003, BG- DW005, BG-DW006, BG-DW007, BG-DW008, BG-WX009, BG-WX010, BG- WX011, BG-WX012, BG-WX013, BG-WX015, BG-WX016, BG-WX017, BG- WX018, BG-WX019, BG-WX020 Trade Name: N/A FCC ID: 2BFP5-BGDWB All the model are the same circuit and RF module, except model names . Regards Sincerely Client’s signature : Client’s name / title : Xu Bin（General Manager） Contact information / address：4th Floor, No. 2, Xinshiqiao Street, Guihua Community Guanlan, Longhua District, Shenzhen, Guangdong, China

Shenzhen Jinsuifangyuan Technology Co.,Ltd (April 7, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Wireless Receiver Transmitter Products / BG-dw-b, BG-dw-w, BG-DW001, BG-DW002, BG-DW003, BG-DW005, BG- DW006, BG-DW007, BG-DW008, BG-WX009, BG-WX010, BG-WX011, BG- WX012, BG-WX013, BG-WX015, BG-WX016, BG-WX017, BG-WX018, BG- WX019, BG-WX020 / FCC ID: 2BFP5-BGDWB) 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: Xu Bin Title: General Manager

Shenzhen Jinsuifangyuan Technology Co.,Ltd (April 7, 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: Xu Bin Title: General Manager

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

FCC ID LABEL: Label Location:

Shenzhen CTB Testing Co., Ltd. FCC ID: 2BFP5-BGDWB Portable device According to §15.247(e)(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. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR 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 When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. BLE: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402 -1.872 0.65 -1±1 0.00 1.00 <5 0.30997 3.00 YES 2.44 -1.962 0.64 -1±1 0.00 1.00 <5 0.31241 3.00 YES 2.480 -2.403 0.58 -2±1 -1.00 0.79 <5 0.25018 3.00 YES GFSK Conclusion: For the max result : 0.31241≤ FCC Limit 3.0 for 1g SAR.

2.4GHz 3216 Chip Antenna: RANT3216F245C03 _ Application: WLAN, 802.11b/g, Bluetooth, WLAN, etc... Features SMD, high reliability, ultra Impact, Omni-directional... Part number Information RANT3216F245C03 (A)(B)(C)(D)(E)(F) Electrical Specification The specification is defined on EVB. Dimension and Terminal Configuration No.Terminal Name 1Feeding/GNG 2GND/Feeding (A)Product TypeChip Antenna (B) Size Code 3.2x1.6mm( ± 0.2mm) (C) MaterialHigh K material (D) Frequency2.4 ~ 2.5GHz (E) Feeding modePIFA & Single Feeding (F) Antenna typeType=03 Working Frequency Range2400 ~2500 MHz Bandwidth120 MHz (Min.) Peak Gain Impedance50 Ohm Return loss10 dB ( Min) PolarizationLinear Azimuth BeamwidthOmni-directional Operation Temperature(°C)-40 ~85°C Resistance to Soldering Heats 10sec. ( @ 280°C) TerminationNi / Au (Leadless) Dimension (mm) L 3.20±0.20 W 1.60±0.20 T 0.45±0.20 咏成國際科技有限公司電話: RAIN International Technology Co., Ltd.TEL: 1.24dBi 2.4GHz 3216 Chip Antenna: RANT3216F245C03 _ 1 Evaluation BoardReference 长条板 PCB 推荐 Dimension 圆板 Antenna Layout Reference Unit :mm Electrical Characteristics Return Loss & Radiation Return Loss Frequency(MHz) S11 (dB) 2400-10.50 2450-30.62 2500-11.47 2.4GHz 3216 Chip Antenna: RANT3216F245C03 _ Radiation 2400MHz2450MHz2500MHz Efficiency82.52%85.26%83.01% Peak Gain1.15 dBi1.24 dBi1.19 dBi Directivity1.89 dBi1.97 dBi1.91 dBi X Y Z 2400MHz 2450MHz 2500MHz 2.4GHz 3216 Chip Antenna: RANT3216F245C03 _ Taping Specifications Reel and Taping Specification Reel Specification TYPESIZEABCD 32167”5K/Reel 9.0±0.5 60±213.5±0.5178±2 Tapping Specification PackagingTypeABWEFGHTψDP Paper Type3216 1.90±0.2 0 3.50±0.2 0 8.0±0.2 0 1.75±0.1 0 3.5±0.054.0±0.102.0±0.050.75±0.1 0 1.50±0.1 0 4.0±0.1 2.4GHz 3216 Chip Antenna: RANT3216F245C03 _ Reliability Table Test ItemProcedure Requirements Ceramic Type Remark (Reference) Electrical Characterization Fulfill the electrical specification User Spec. Thermal Shock 1. Preconditioning: 50 ± 10°C/ 1 hr , then keep for 24 ± 1 hrs at room temp. 2. Initial measure: Spec: refer Initialspec. 3. Rapid change of temperature test: -30°Cto +85°C; 100 cycles; 15 minutes at Lower category temperature; 15 minutes at Upper category temperature. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 107 Temperature Cycling 1. Initial measure: Spec: refer Initialspec. 2. 100 Cycles (-30°Cto +85°C), Soak Mode=1 (2 Cycle/hours). 3. Measurement at 24 ± 2Hours after testcondition. No Visible Damage. Fulfill the electrical specification. JESD22 JA104 High Temperature Exposure 1. Initial measure: Spec: refer Initialspec. 2. Unpowered; 500hours @ T=+85°C. 3. Measurement at 24 ± 2 hours aftertest. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 108 Low Temperature Storage 1. Initial measure: Spec: refer Initialspec. 2. Unpowered: 500hours @ T=-30°C. 3. Measurement at 24 ± 2 hours aftertest. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 108 Solderability (SMD Bottom Side) Dipping method: a. Temperature: 235 ±5°C b. Dipping time: 3 ±0.5s The solder should cover over 95% of the critical area of bottom side. IEC 60384-21/22 4.10 Soldering Heat Resistance (RSH) Preheating temperature: 150 ± 10°C. Preheating time: 1~2 min. Solder temperature: 260 ± 5°C. Dipping time: 5 ± 0.5s No Visible Damage.IEC 60384-21/22 4.10 Vibration5g's for 20 min., 12 cycles each of 3 orientations Note: Use 8"X5" PCB .031" thick 7 secure points on, one long side and 2 secure points at corners of opposite sides. Parts mounted within 2" from any secure point. Test from 10-2000 Hz. No Visible Damage.MIL-STD-202 Method 204 Mechanical Shock Three shocks in each direction shall be applied along the three mutually perpendicular axes of the test specimen (18 shocks) Peak value: 1,500g’s Duration: 0.5ms Velocity change: 15.4 ft/s Waveform: Half-sine No Visible Damage.MIL-STD-202 Method 213 Humidity Bias 1. Humidity: 85% R.H., Temperature:85 ± 2 °C. 2. Time: 500 ± 24hours. 3. Measurement at 24 ± 2hrs after testcondition. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 Method 106 2.4GHz 3216 Chip Antenna: RANT3216F245C01 _ Board Flex (SMD) 1. Mounting method: IR-Reflow. PCB Size (L:100 × W:40 × T:1.6mm) 2. Apply the load in direction of the arrow until bending reaches 2 mm. No Visible Damage.AEC-Q200 005 AdhesionForce of 1.8Kg for 60 seconds.No Visible Damage Magnification of 20X or greater may be employed for inspection of the mechanical integrity of the device body terminals and body/terminal junction. AEC-Q200 006 Physical Dimension Any applicable method using x10 magnification, micrometers, calipers, gauges, contour projectors, or other measuring equipment, capable of determining the actual specimen dimensions. In accordance with specification. JESD22 JB100 Revision History RevisionDateContent 12019/03/01New Datasheet 22020/02/22Add 2D radiation characteristic

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: Wireless Receiver Transmitter Products FCC ID: 2BFP5-BGDWB Trademark: N/A Model Number: BG-dw-b, BG-dw-w, BG-DW001, BG-DW002, BG-DW003, BG-DW005, BG-DW006, BG-DW007, BG-DW008, BG-WX009, BG-WX010, BG-WX011, BG-WX012, BG-WX013, BG-WX015, BG-WX016, BG-WX017, BG-WX018, BG-WX019, BG-WX020 Prepared For: Shenzhen Jinsuifangyuan Technology Co.,Ltd Address: 4th Floor, No. 2, Xinshiqiao Street, Guihua Community Guanlan, Longhua District, Shenzhen, Guangdong, China Manufacturer: Shenzhen Jinsuifangyuan Technology Co.,Ltd Address: 4th Floor, No. 2, Xinshiqiao Street, Guihua Community Guanlan, Longhua District, Shenzhen, Guangdong, China 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: Mar. 22, 2024 Sample tested Date: Mar. 22, 2024 to Mar. 28, 2024 Issue Date: Mar. 28, 2024 Report No.: CTB240326085RFX Test Standards FCC Part15.247 ANSI C63.10:2013 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240326085RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 33 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ........................................................................................................................................ 3 2. TEST SUMMARY ........................................................................................................................... 4 3. MEASUREMENT UNCERTAINTY ................................................................................................. 5 4. PRODUCT INFORMATION AND TEST SETUP ............................................................................ 6 4.1 Product Information .......................................................................................................................... 6 4.2 Test Setup Configuration .................................................................................................................. 6 4.3 Support Equipment........................................................................................................................... 6 4.4 Channel List ..................................................................................................................................... 7 4.5 Test Mode ........................................................................................................................................ 7 4.6 Test Environment ............................................................................................................................. 7 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................................................... 8 5.1 Test Facility ...................................................................................................................................... 8 5.2 Test Instrument Used ....................................................................................................................... 8 6. AC POWER LINE CONDUCTED EMISSION ................................................................................ 10 6.1 Block Diagram Of Test Setup ......................................................................................................... 10 6.2 Limit ................................................................................................................................................ 10 6.3 Test procedure ............................................................................................................................... 10 6.4 Test Result ..................................................................................................................................... 12 7. RADIATED SPURIOUS EMISSION ............................................................................................. 13 7.1 Block Diagram Of Test Setup ......................................................................................................... 13 7.2 Limit ................................................................................................................................................ 13 7.3 Test procedure ............................................................................................................................... 14 7.4 Test Result ..................................................................................................................................... 15 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS ............................................... 22 8.1 Block Diagram Of Test Setup ......................................................................................................... 22 8.2 Limit ................................................................................................................................................ 22 8.3 Test procedure ............................................................................................................................... 22 8.4 Test Result ..................................................................................................................................... 23 9. COUD…

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Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 1 Model: BG-dw-b Radiated Emission Below 1G Above 1G