2BUHK-YYI-888MAGNETIC PORTABLE POWER BANK

( STEM bluetooth speaker ki � 01 兰 Building bluetooth speaker kit 125*75*70mm 8 + The bluetooth speakers can play music by connecting to Bluetooth playback devices such as mobile phones. The toy needs to purchase a good battery, and the higher the dischargecurrent, the better, If noise , please lower the volume! Creator TUTORIAL [ Wisdom Science Puzzle 王 [ PACKAGE LIST J .. An interesting model kit to cultivate thinking and hands-on skills, learn the science of electronics, stimulate the curiosity. I 一 . � r'j 一 ， ．． ． Press in switch --.... A 。 � 03 Fix the battery box with 2 long screws D - � `' | ll. n horn ． r ． 「 j ． A ， ． ． ' '"""'' 三 一 ＾ ' 一_:_ •• ． B ． ' ． ， ． ． r .,, r ,, :__ c 、 俨争 ＾ 一，一 Attention to the direction of the switch 02 ？ 、 04 :1: ＾ ＆ ｀ _______r� Bluetooth酗ule \. \ 勹湛匠 ．． D Batte「y bo ＼, � --'-,_ ---"-7" 1一 － �adwire ,..., I 心尘4 .... Short scr - ＼ • ＼ ＝ E 仁 ，，， .., ., B Fix the circuit board with 2 short screws � A 俨 之 D ． L — 一 千 � - ­ l 一 、 switch 卒尸 long screw -, F ＿ － 7 -............_ _.- 匕 ＿ ＿一 － Black wire connection ＿ ---- kid toys 05 Align the battery box with the mounting holes and fix it with 2 short screws. Pass the wire through the round hole to the other side ． ． ． ．． Remove the cover from the socket and insert the plug of the battery box into the socket on the right 多 令 声 ｀ •• ＼ 07 The head of the antenna is � laced in the hole on the o. 2 board, and the tail is screwed into the hole on the No. 6 board. ． 09 Connect the wire end to the loudspeaker, as shown in the picture, connect the negative pole on the left to the black wi「e, and the positive pole on the right to the red wire 11 Insert the plug of the loudspeaker module into the socket on the controller module as shown in the picture, and please pay attention to the direction of the plug, the side with the protrusion should face upwards ＼ 06 Fix the U-shaped board on the lower left side (refer to the three holes in the picture), and fix it with long screws Pass a long screw through the loop of the loop wire, and then screw it into the antenna hole, as shown in the picture long screw through the loop and screw it into the antenna 08 Install No. 4 and No. 1 on board No. 3 and fix with screws ， 1 眉勺冒 , _, 10 5 ， The patterned side is on the back 12 Assemble the last board and secure it with long screws to complete the assembly ， a ntenna volume chann el swi tch 啊indi cator tr,,# •••• � ... C 、: l I , 农炒 虚 ｀ I '衣l ..-;,,I l) 、) I nstructi on: Install two AA batteries (must be good batteries for safety). Pull out the antenna, turn on the switch, and the indicator light will turn on. Click to change the frequency and adjust the sound volume Notes: ｀重 ｀ 唱 . ...,,..� ••• ． FM RAOf ． 上 FM frequency: 88-109MHz, 1.Please make sure the wiring is correct. It is recommended to use medium and low volume. The noise 'will be obvious at high volume 2.Every time it is turn it on and off, it will return to the initial state 3.lf there is noise on some channels, it may be a local signal issue 4.lf the indicator dims or flashes o「 sound is unclear, the battery is low 5.lndicator is on, no sound, restart it Different regions have different number of channels。 皿．皿呻扈啊-- 05 Terminal wire connection horn ,4Q3W 心W 07 4Q劝 i-- 一 Power fterminal 一· 一 ， 09 Fix the A board 1 ., ..... - ,.-;.'' � A 。 L.;.� 啊...,; 七 I 06 Eight short screws to secure the horn 08 _ / 、 ＼ ＼ W'Y"" ＼＼ I l ． ． / ． I I A ． ． ＼ 习， ， �"1V l 叩： 亡 习呕仆1 I I ＼ I t) B l\ '\ .. __II瓜�-□ � ＼、 I fl 8 。 � -- －－ ＿ I a. 桑. .....,... 礼 10 D � C. 1 1 u � 今 ． ｀ ｀ ． 、 . B C F � 、 � ， 4 了 ． I f ! ｀ 千 一 - -<I 11 I I ＂ 罐11 ■ 矗I ， " - --夕`、�、 I \ I I I Fix the C/E/F/D board 10 Fix the B board 11 1.Turn on 2.Open your phone and find : kakistar 3.Click on pairing and there will be a prompt tone. Bluetooth MY DEVICES kakistar Bluetooth Now discoverable as "Phone•. OTHER DEVICES••� 霆) Connected (D Precautions: 1. Step 8: Pay attention to connecting the C-E-F-D board in sequence 2. Steps 8, 9, 10 should be careful not to press forcefully. 3. The toy needs to purchase a good battery, and the higher the dischargecurrent,the better,lf noise,please lower the volume! 4. If Bluetooth cannot be searched or crashes, it may be due to the batterylevellnsufficient. ＿ .., FCC Caution： 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 opera tion. Any changes or modifications not expressly approved by the part y responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with t he limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against ha rmful interference in a residential installation. This equipmen t generates, uses and can radiate radio frequency energy and, if not installed and us ed in accordance with the instru ctions, may cause harmful inter ference to radio communications. However, there is no guarantee that interferenc e will not occur in a particular installation. If this equipment does cause harmful interference to radio or t elevision 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. The device has been evaluated to meet general RF exposure requi rement. The device can be u sed in portable exposure condi tion without restriction.

1/1 USAgentforServiceofProcessLETTEROFATTESTATION TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USAgentforServiceofProcess: CompanyName:HOPEKCORPORATIONINC Address:16755CoyoteBushDrUnit84,SanDiego,CA92127UnitedStates FRN:0034562900 ContactName:YangyangXu TelephoneNo:561-875-9826 E-mail:[email protected] ThisletteristoconfirmthattheUSAgentforServiceofProcessacceptsresponsibilitytoactas alocalrepresentativeonbehalfofGuangzhouYuanyiE-commerceCo.,LTD TheUSAgentforServiceofProcessisawareofandagreestocomplywiththerequirements outlinedintheFCCEquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause §2.911. Applicant: CompanyName:GuangzhouYuanyiE-commerceCo.,LTD ProductDescription:kidtoys FRN:0037886876 GranteeCode:2BUHK FCCID:2BUHK-YYI-888 ContactName:Chendandan Address:TangdongDongRoad,TianheDistrict,Guangzhou,Guangdong,China TelephoneNo:15576650592 E-mail:[email protected] TheApplicantisawareofandagreestocomplywiththerequirementsoutlinedintheFCC EquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause§2.911. ThisAgreementisvaliduntil(Permanentlyvalid). Date:2026/2/2 Applicant’sName: GuangzhouYuanyiE-commerceCo.,LTD USAgentforServiceofProcess’sName: HOPEKCORPORATIONINC Title:LegalentityTitle:Manager SignatureSignature

Rev 1/26/2023 Guangzhou Yuanyi E-commerce Co., LTD Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jan. 23, 2026 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BUHK-YYI-888 [Guangzhou Yuanyi E-commerce 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. [Guangzhou Yuanyi E-commerce Co., LTD] certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, (Applicant signature) (Applicant printed name) Chendandan Rev 1/26/2023 Guangzhou Yuanyi E-commerce Co., LTD Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jan. 23, 2026 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BUHK-YYI-888 [Guangzhou Yuanyi E-commerce 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, (Applicant signature) (Applicant printed name) Chendandan

Guangzhou Yuanyi E-commerce Co., LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: January 24, 2026 Subject; Request for Confidentiality FCC ID: 2BUHK-YYI-888 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 Tune-up Procedure 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: Chendandan Title: Legal entity

Effective Date: April 2, 2020 QSF 7.6.4-8 – Agent Authorization Letter Template Page 1 of 1 Revision Date: Revision: 0 Guangzhou Yuanyi E-commerce Co., LTD Date: Jan. 23, 2026 Product Model Number: YYi-888, QS-01, QS-02, QS-03, QS-04, QS-05, QS-06, QS-07, QS- 08, QS-09, QS-10, QS-11, QS-12, QS-13, QS-14, QS-15, QS-16, QS-17, QS-18, QS-19, QS-20, YY01, YY-02, YY-03, YY-04, YY-05, YY-06, YY-07, YY-08, YY-09152, 153, 154, 155, 156, 157, 1819, 3050, YY2526, YY-689 FCC ID: 2BUHK-YYI-888 To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following:  Testing  Approval applications and procedures We declare that QAI Laboratories Ltd. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by QAI Laboratories Ltd. on our behalf shall have the same effect as acts of our own. By: Contact Listed on FCC Wesbite Title: Legal entity Email: [email protected] Telephone: 15576650592 On behalf of: Guangzhou Yuanyi E-commerce Co., LTD

Guangzhou Yuanyi E-commerce Co., LTD Family models declaration letter Jan. 23, 2026 We Guangzhou Yuanyi E-commerce Co., LTD Of Tangdong Dong Road, Tianhe District, Guangzhou, Guangdong, China Declare under our sole responsibility that the product FCC ID: 2BUHK-YYI-888 Product: kid toys Model Number: YYi-888, QS-01, QS-02, QS-03, QS-04, QS-05, QS-06, QS-07, QS-08, QS-09, QS-10, QS-11, QS-12, QS-13, QS-14, QS-15, QS-16, QS-17, QS-18, QS-19, QS-20, YY01, YY-02, YY-03, YY-04, YY-05, YY-06, YY-07, YY-08, YY-09152, 153, 154, 155, 156, 157, 1819, 3050, YY2526, YY-689 All the models are the same circuit and module, except the model No.. Chendandan/ Legal entity E-mail : [email protected] Phone : 15576650592 Fax : N/A Address : Tangdong Dong Road, Tianhe District, Guangzhou, Guangdong, China

Shenzhen Huashengjie Technology Co., Ltd. Product specification antenna test 1，Hardware testing 2，software testing 3，Data reading 1，Hardware test 11，Equipment environment The equipment required for this test includes a computer, a spectrometer, an amplifier, and a darkroom, as shown in the following figure: 2，Softwaretesting 2.1，Datareading 2.2，3Dradiationpatternofthescanningantenna 2400MHz: 2450MHz: 2500MHz: 2.3，Scanningantenna2Dradiation pattern 2.3，detailedscan-outdataresults Freq（MHz） Gain（dBi）Efficiency（dB）Efficiency（%） 24004.733425911.773815678150.4463195 24104.9612651221.895608836154.7251398 24205.0673021691.962652587157.1322245 24305.3680034142.188791154165.5309149 24405.6005288922.350140377171.7963916 24505.6550408512.390523367173.4012951 24605.5213992692.267430619168.5555519 24705.0019275091.794395308151.1609215 24804.5633976821.323160534135.6175997 24904.0231804360.746943067118.7665953 25003.6912137590.453532901111.0077475 ITEMANTSPEC ModelName2.4GANT AntennaplatePCBantenna CenterFrequency2400MHz2450MHz2500MHz 4.73dBi5.65dBi3.69dBi MAX.Gain5.65dBi PolarizationHorizontaiandVertical Impedance50Ohm Manufacture AntennaPhouo&Length(mm) No. 718, Building A, Huafeng Internet Creative Park, Renhe Industrial Road, Xixiang Street, Bao'an District, Shenzhen City

Ext Photos Model: YYi-888 Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6

Label and Label Location Model: YYi-888 11cm FCC ID: 2BUHK-YYI-888 3cm

Int Photos Model: YYi-888 Photo 1 Photo 2 Photo 3 Photo 4 ANT

- Page 1 of 10 - Report No.: HB20260108005E-02 Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China Tel: (86-755) 29989321 Fax: (86-755) 29985110 Web:www.sz-hongbiao.com RF EXPOSURE Test Report Product: kid toys Trade Mark: N/A Model Number: YYi-888 FCC ID: 2BUHK-YYI-888 Prepared for Guangzhou Yuanyi E-commerce Co., LTD Tangdong Dong Road, Tianhe District, Guangzhou, Guangdong, China Prepared by Shenzhen HongBiao Certification& Testing Co., Ltd Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen, China Tel.: +86-755-2998 9321 Fax.: +86-755-2998 5110 Website: http://www.sz-hongbiao.com - Page 2 of 10 - Report No.: HB20260108005E-02 Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China Tel: (86-755) 29989321 Fax: (86-755) 29985110 Web:www.sz-hongbiao.com Table of Contents 1 GENERAL DESCRIPTION ................................................................................................................................... 5 1.1 DESCRIPTION OF EUT ................................................................................................................................................ 5 1.2 TEST MODE .............................................................................................................................................................. 5 1.3 TEST SETUP .............................................................................................................................................................. 5 1.4 ANCILLARY EQUIPMENT .............................................................................................................................................. 6 2 TEST FACILITIES AND ACCREDITATIONS ............................................................................................................ 7 2.1 TEST LABORATORY ..................................................................................................................................................... 7 2.2 ENVIRONMENTAL CONDITIONS ..................................................................................................................................... 7 2.3 MEASUREMENT UNCERTAINTY ..................................................................................................................................... 7 2.4 TEST SOFTWARE ........................................................................................................................................................ 7 3 LIST OF TEST EQUIPMENT ................................................................................................................................ 8 4 RF EXPOSURE .................................................................................................................................................. 9 4.1 STANDALONE SAR TEST EXCLUSION CONSIDERATIONS........................................................................................................ 9 4.1.1. Limit ............................................................................................................................................................ 9 4.1.2. Test Procedures ........................................................................................................................................... 9 4.1.3. Test Result ................................................................................................................................................. 10 - Page 3 of 10 - Report No.: HB20260108005E-02 Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China Tel: (86-755) 29989321 Fax: (86-755) 29985110 Web:www.sz-hongbiao.com TEST RESULT CERTIFICATION Applicant’s Name ................. : Guangzhou Yuanyi E-commerce Co., LTD Address ................................. : Tangdong Dong Road, Tianhe District, Guangzhou, Guangdong, China Manufacturer's Name .......... : Guangzhou Yuanyi E-commerce Co., LTD Address ................................. : Tangdong Dong Road, Tianhe District, Guangzhou, Guangdong, China Product description Product name ........................ : kid toys Model Number ....................... : YYi-888 Standards ............................. : FCC CFR 47 PART 1 , 1.1310 Test procedure ....................... : KDB 447498 D01 General RF Exposure Guidance v06 This device described above has been tested by Shenzhen HongBiao Certification& Testing Co., Ltd and the test results show that the equipment under test (EUT) is in compliance with the EMC requirements. And it is applicable only to the tested sample identified in the report. Date of Test ............................................ : Date (s) of performance of tests ............. : Jan. 08, 2026~Jan. 23, 2026 Test Result ............................................... : Pass Testing Engineer : (Zoe Su) Technical Manager : ( G a r y Lu) Authorized Signatory : (L e o S u) - Page 4 of 10 - Report No.: HB20260108005E-02 Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China Tel: (86-755) 29989321 Fax: (86-755) 29985110 Web:www.sz-hongbiao.com Revision History Revised No. Date of Issue Description 01 Jan. 23, 2026 Original - Page 5 of 10 - Report No.: HB20260108005E-02 Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China Tel: (86-755) 29989321 Fax: (86-755) 29985110 Web:www.sz-hongbiao.com 1 General Description 1.1 Description of EUT Product name: kid toys Model name: YYi-888 Series Model: QS-01, QS-02, QS-03, QS-04, QS-05, QS-06, QS-07, QS-08, QS-09, QS-10, QS-1…

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- Page 1 of 64 - Report No.: HB20260108005E-01 Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China Tel: (86-755) 29989321 Fax: (86-755) 29985110 Web:www.sz-hongbiao.com Test Report Product: kid toys Trade Mark: N/A Model Number: YYi-888 FCC ID: 2BUHK-YYI-888 Prepared for Guangzhou Yuanyi E-commerce Co., LTD Tangdong Dong Road, Tianhe District, Guangzhou, Guangdong, China Prepared by Shenzhen HongBiao Certification& Testing Co., Ltd Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen, China Tel.: +86-755-2998 9321 Fax.: +86-755-2998 5110 Website: http://www.sz-hongbiao.com - Page 2 of 64 - Report No.: HB20260108005E-01 Add:Room 102, 201, Building 2, Yuanwanggu RFID Industrial Park, Tongguan Road, Tianliao Community, Yutang Street, Guangming District, Shenzhen,China Tel: (86-755) 29989321 Fax: (86-755) 29985110 Web:www.sz-hongbiao.com Table of Contents 1 GENERAL DESCRIPTION ................................................................................................................................... 6 1.1 DESCRIPTION OF EUT ................................................................................................................................................ 6 1.2 TEST MODE .............................................................................................................................................................. 6 1.3 OPERATION CHANNEL LIST .......................................................................................................................................... 6 1.4 TEST SETUP .............................................................................................................................................................. 7 1.5 POWER SETTING CONFIGURATION PARAMETERS ............................................................................................................... 7 1.6 ANCILLARY EQUIPMENT .............................................................................................................................................. 8 2 SUMMARY OF TEST RESULT ............................................................................................................................. 9 3 TEST FACILITIES AND ACCREDITATIONS .......................................................................................................... 10 3.1 TEST LABORATORY ................................................................................................................................................... 10 3.2 ENVIRONMENTAL CONDITIONS ................................................................................................................................... 10 3.3 ME ASUREMENT UNCERTAINTY ................................................................................................................................... 10 3.4 TE ST SOFTWARE ...................................................................................................................................................... 11 4 LIST OF TEST EQUIPMENT .............................................................................................................................. 12 5 TEST ITEM AND RESULTS ............................................................................................................................... 14 5.1 ANTENNA REQUIREMENT .......................................................................................................................................... 14 5.1.1 Standard Requirement ............................................................................................................................. 14 5.1.2 Test Result ................................................................................................................................................. 14 5.2 CONDUCTED EMISSION ............................................................................................................................................. 15 5.2.1 Limits ........................................................................................................................................................ 15 5.2.2 Test Procedures ......................................................................................................................................... 15 5.2.3 Test Setup.................................................................................................................................................. 16 5.2.4 Test Result ................................................................................................................................................. 16 5.3 RADIATED EMISSION ................................................................................................................................................ 17 5.3.1 Limits ........................................................................................................................................................ 17 5.3.2 Test Procedures ......................................................................................................................................... 17 5.3.3 Test Setup.................................................................................................................................................. 17 5.3.4 Test Result ................................................................................................................................................. 18 5.3.5 Radiated Band Edge ................................................................................................................................. 23 5.4 PEAK OUTPUT POWER ............................................................................................................................................. 24 5.4.1 Limit ......…

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Photographs of the Test Setup Model: YYi-888 Radiated Emission Below 1GHz Radiated Emission Above 1GHz