SLFEF-B210SOutdoor Bluetooth Speakers

Warm Warm WARM This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this 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. The device has been evaluated to meet general RF exposure requirement.

Shenzhen Wanfengda Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 7/2/2024 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: SLFEF-B210S Shenzhen Wanfengda Electronics Co., Ltd 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, Signed: Printed name: huafeng Huang Title: Engineer Company Name: Shenzhen Wanfengda Electronics Co., Ltd Shenzhen Wanfengda Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 7/2/2024 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: SLFEF-B210S Shenzhen Wanfengda Electronics Co., Ltd certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List(as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, Signed: Printed name: huafeng Huang Title: Engineer Company Name: Shenzhen Wanfengda Electronics Co., Ltd

Shenzhe 2F, Build Shenzhe China Date: Ju n Federal C Authoriza 7435 Oa Columbi a FCC ID: FRN: 00 2 US Shenzhe FCC US Shenzh e the Unite marketing Commiss later. FCC US the desi g Wanfeng Designat Company FRN: 003 Address: Contact P Phone: 7 Email: Su Sincerely Compan y Co., Ltd Compan y Signature en Wanfengd ding 1, Hezho en ne 27, 2024 Communicat ation and Ev kland Mills R a, MD 21046 SLFEF-B21 22555759 S Agen en Wanfengd Agent, LLC en Wanfengd ed States for g and import sion-related a Agent, LLC, gnated agent gda Electroni ted Agent In y Name: FCC 33402884 3722 Illinoi s Person: Tim 708-571-3148 upport@FCC y, y: Shenzhen y Represent e: da Electronic ou Yuye Ind tions Comm valuation Div Road 6 0S t – Atte da Electronic to accept se da Electronic no less than tation of the administrativ accepts as t for the purp cs Co., Ltd f nformation: C US Agent, s Avenue, Sa Payne 8 CUSAgent.co n Wanfengda ative: huafen cs Co., Ltd dustrial Zone mission vision station cs Co., Ltdce ervice of proc cs Co., Ltd, a n one year af applicable e ve or judicial of the date o pose of acce for FCC ID: S : , LLC aint Charles, om a Electronics ng Huang e, Xixiang, B Statem ertifies, that a cess on our b accepts to ma fter either the equipment wi proceeding of the filing o pting service SLFEF-B210 , IL, 60174, U s Designat Designat Signature ao'an ment / Pa as of June 27 behalf for FC aintain an ag e grantee ha ithin the U.S involving the of this applica e of process 0S. USA ted Agent: F ted Agent Re e: art 2.91 7, 2024, we h CC ID: SLFE gent of servic as permanen S., or the con e equipment ation, the ob on behalf o f CC US Agen epresentativ 1(d)(7) have design EF-B210S. ce of proces ntly terminate clusion of an t, whichever ligation of b e f Shenzhen nt, LLC e: Tim Payn ated ss in ed all ny is eing e

Shenzhen Wanfengda Electronics Co., Ltd 2024-07-02 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: SLFEF-B210S Attn: Director of Certification Authority to Act as Agent On our behalf, I appoint Shenzhen Alpha Product Testing Co., Ltd. Address: Building i, No.2, Lixin Road, Fuyong Street, Bao’an District, 518103, Shenzhen, Guangdong, China Person: Mark Zhu (Name: Shenzhen Alpha Product Testing Co., Ltd. and address: Building i, No.2, Lixin Road, Fuyong Street, Bao’an District, 518103, Shenzhen, Guangdong, China). to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by TIMCO still resides with Shenzhen Wanfengda Electronics Co., Ltd Address: 2F, Building 1, Hezhou Yuye Industrial Zone, Xixiang, Bao'an, Shenzhen, China. (applicant name and address). Signature: Name huafeng Huang Position Engineer Company Name Shenzhen Wanfengda Electronics Co., Ltd Address 2F, Building 1, Hezhou Yuye Industrial Zone, Xixiang, Bao'an, Shenzhen, China. Tel +86-755-29617989 Fax +86-755-29617989 Email [email protected]

Shenzhen Wanfengda Electronics Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: July 2, 2024 Subject; Request for Long Term Confidentiality FCC ID: SLFEF-B210S 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 Operational Description BOM 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. Signature: Name huafeng Huang Position Engineer Company Name Shenzhen Wanfengda Electronics Co., Ltd Address 2F, Building 1, Hezhou Yuye Industrial Zone, Xixiang, Bao'an, Shenzhen, China. Tel +86-755-29617989 Fax +86-755-29617989 Email [email protected]

Differences Description We Shenzhen Wanfengda Electronics Co., Ltd state: Product name: Outdoor Bluetooth Speakers Model: EF-B210S, EF-B210S(COLOR) There is no difference between these models except for the customer number. All models of all models of PCB design, software, electric circuit, radio frequency characteristics, appearance are consistent 2024-7-1 Name huafeng Huang Position Engineer Company Name Shenzhen Wanfengda Electronics Co., Ltd Address 2F, Building 1, Hezhou Yuye Industrial Zone, Xixiang, Bao'an, Shenzhen, China. Tel +86-755-29617989 Fax +86-755-29617689 Email [email protected] (Signature)

FCCID: SLFEF-B210S FCCID: SLFEF-B210S FCCID: SLFEF-B210S FCCID: SLFEF-B210S

4.5cm 2.5cm Label Location FCC ID: SLFEF-B210S Shenzhen Wanfengda Electronics Co., Ltd Product name: Outdoor Bluetooth Speakers Model No.: EF-B210S,EF-B210S(COLOR) 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.

FCCID: SLFEF-B210S FCCID: SLFEF-B210S FCCID: SLFEF-B210S FCCID: SLFEF-B210S FCCID: SLFEF-B210S FCCID: SLFEF-B210S FCCID: SLFEF-B210S FCCID: SLFEF-B210S TX ANT

FCC ID: SLFEF-B210S RF Exposure evaluation According to 447498 D01 General RF Exposure Guidance v06 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 Worse case is as below: [2402MHz: -0.335dBm (0.926mW) output power] (0.926mW /5mm)·[√2.402(GHz)]= 0.287<3.0 for 1-g SAR Then SAR evaluation is not required

ALPHA's reports is using a digital certificate that is trusted on Adobe's official server. If there is no digital certificate or the digital certificate shows damaged in your report. Please do not accept the report. E-mail: [email protected] Tel: 4008300895 Website: http://www.a-lab.cn/certificate FCC TEST REPORT FCC ID: SLFEF-B210S On Behalf of Shenzhen Wanfengda Electronics Co., Ltd Outdoor Bluetooth Speakers Model No.: EF-B210S, EF-B210S(COLOR) Prepared for : Shenzhen Wanfengda Electronics Co., Ltd Address : 2F, Building 1, Hezhou Yuye Industrial Zone, Xixiang, Bao’an, Shenzhen, China. Prepared By : Shenzhen Alpha Product Testing Co., Ltd. Address : Building i, No.2, Lixin Road, Fuyong Street, Bao’an District, 518103, Shenzhen, Guangdong, China Report Number : A2406198-C01-R02 Date of Receipt : June 25, 2024 Date of Test : June 25, 2024-June 26, 2024 Date of Report : June 27, 2024 Version Number : V0 Test Result : Pass Page 2 of 64 Report No.: A2406198-C01-R02 TABLE OF CONTENTS Description Page 1. Summary of Standards And Results ............................................................................................ 6 1.1. Description of Standards and Results ..................................................................................... 6 2. General Information ........................................................................................................................ 7 2.1. Description of Device (EUT) .................................................................................................... 7 2.2. Accessories of Device (EUT) .................................................................................................. 8 2.3. Tested Supporting System Details .......................................................................................... 8 2.4. Block Diagram of connection between EUT and simulators ................................................... 8 2.5. Test Mode Description ............................................................................................................. 8 2.6. Test Conditions ........................................................................................................................ 9 2.7. Test Facility .............................................................................................................................. 9 2.8. Measurement Uncertainty ....................................................................................................... 9 2.9. Test Equipment List ............................................................................................................... 10 3. Maximum Peak Output power...................................................................................................... 12 3.1. Limit ....................................................................................................................................... 12 3.2. Test Procedure ...................................................................................................................... 12 3.3. Test Setup .............................................................................................................................. 12 3.4. Test Result ............................................................................................................................. 12 4. Bandwidth ...................................................................................................................................... 13 4.1. Limit ....................................................................................................................................... 13 4.2. Test Procedure ...................................................................................................................... 13 4.3. Test Result ............................................................................................................................. 13 5. Carrier Frequency Separation ..................................................................................................... 24 5.1. Limit ....................................................................................................................................... 24 5.2. Test Procedure ...................................................................................................................... 24 5.3. Test Result ............................................................................................................................. 24 6. Number Of Hopping Channel ....................................................................................................... 26 6.1. Limit ....................................................................................................................................... 26 6.2. Test Procedure ...................................................................................................................... 26 6.3. Test Result ............................................................................................................................. 26 7. Dwell Time ..................................................................................................................................... 28 7.1. Test limit ................................................................................................................................. 28 7.2. Test Procedure ...................................................................................................................... 28 7.3. Test Result ............................................................................................................................. 28 8. Radiated emissions ...................................................................................................................... 38 8.1. Limit ....................................................................................................................................... 38 8.2. Block Diagram of …

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1 ShenZhen City FeiMin Technology CO.,LTD. SPECIFICATION FOR APPROVED CUSTOMER: Shenzhen Wanfengda Technology Co., Ltd. PRODUCTS: 2.4G antenna PART NO: Spec.: FM-S975-EF-B210G Data: 2024.7.1 REMARK:Please send us one(or copy)of this approval with stamp after accepting,other copies filed by the customer. ADD:Room 303,Building C,Hengnan one Road,Gushu community,Xixiang Street,Bao’an District,Shenzhen City Tel: 0755-23035723 Fax: 0755-23036702 E-mail: [email protected] HTTP:www.fmant.cn CUSTOMER ACCEPTED BY ACCEPTED BY ACCEPTED BY SUPPLIER PREPARED BY PREPARED BY PREPARED BY FanMa FanMa FanMa ANTENNA SPECIFICATION Shenzhen Feimin Technology Co.,Ltd 2 catalog 1. Project Information ................................................................................................... 4 1.1. Appearance and Dimensions ........................................................................... 4 2. Electrical Characteristics ........................................................................................... 5 2.1. Test Environment Conditions .......................................................................... 5 2.2. Measurement method ...................................................................................... 5 2.2.1. Antenna VSWR ............................................................................................ 5 2.2.2. Antenna Return loss ............................................................................ 6 2.3. Antenna passive test data ................................................................... 6 2.3.1. Test system ................................................................................................ 6 2.3.2Antenna efficiency and gain ............................................................. 7 2.3.2. Antenna Radiation Pattern .................................................................... 7 3. Notes .......................................................................................................................... 8 4. Product packaging specification ............................................................................... 8 ANTENNA SPECIFICATION Shenzhen Feimin Technology Co.,Ltd 3 Revision history version date condition A1 2024.7.1 First edition Changes: First change: Before the change: (If necessary, please add corresponding pictures, and the details of the change should be clearly described here) After the change: (If necessary, please add corresponding pictures, and the details of the change should be clearly described here) ANTENNA SPECIFICATION Shenzhen Feimin Technology Co.,Ltd 4 1.Project Information 1.1. Appearance and Dimensions ANTENNA SPECIFICATION Shenzhen Feimin Technology Co.,Ltd 5 2. Electrical Characteristics 2.1. Test Environment Conditions physical features Temperature Ordinary Temperature (5 to 35°C) Humidity Ordinary Humidity (25 to 85% RH) 2.2. Measurement method 2.2.1. Antenna VSWR ANTENNA SPECIFICATION Shenzhen Feimin Technology Co.,Ltd 6 2.2.2. Antenna Return loss 2.3. Antenna passive test data 2.3.1. Test system Shenzhen Feimin Technology Co., Ltd. (24-probe OTA microwave darkroom) ANTENNA SPECIFICATION Shenzhen Feimin Technology Co.,Ltd 7 2.3.2Antenna efficiency and gain Frequency (MHz) Gain(dB) Efficiency(%) 2400 3.17 51.36 2410 3.24 52.14 2420 3.40 53.90 2430 3.42 58.43 2440 3.48 58.94 2450 3.54 59.63 2460 3.59 58.18 2470 3.63 53.68 2480 3.67 52.11 2490 3.74 52.39 2500 3.77 50.54 2.3.2. Antenna Radiation Pattern ANTENNA SPECIFICATION Shenzhen Feimin Technology Co.,Ltd 8 3. Notes 1. When installing, be careful not to be too close to the metal part to avoid affecting the antenna performance. 2. . This antenna is only suitable for this model, and the position of the antenna cannot be changed at will. If it is used on other machines, the effect will become worse, which has nothing to do with our company. 3. The data (such as antenna efficiency, gain, etc.) used in this acknowledgement are all obtained from the laboratory test of this recognition project/antenna in Shenzhen Feimin Technology Co., Ltd. 4. Product packaging specification Product name: 2.4G antenna 1、Labeling requirements The inner label is 7CM long and 4CM wide The outer label is 7CM long, about 5CM 2、Packing process Job description： 1. The product __PCS is packed in PE open pockets, and the inner label is affixed to each pouch; Put the __ small bag into the big PE sealing tape bag, except the tail number and spare parts. 2. Each box contains __ large bags of products, and the boxes are sealed with adhesive tape in the shape of "I"。 3. Paste the outer label on the upper right corner of the box, and there must be no missing or wrong filling. 3、Precautions When packing the box, please pay attention to lay the antenna flat and avoid serious shaking after sealing. If the whole box is not filled, it needs to be filled with foam to avoid transportation Circumstances that caused product defects in the process。 client's name supplier Shenzhen Feimin Technology Co., Ltd. Order number ************* Material coding ************* Specification model ****** product name ******* quantity *****PCS QC: spare parts ***PCS Notes supplier Shenzhen Feimin Technology Co., Ltd. product name ************* Material coding ************* Specifications ********** quantity ***PCS

FCCID: SLFEF-B210S Radiated Emission FCCID: SLFEF-B210S Conducted emission