2A4C5-SJ-109-A3-in-1 Wireless Charger with Detachable 10,000mAh Power Bank

Power bank Charging Stand Type-C Charging Cable User Manual Package Contents: This product can be used by children 8 years or older, and by individuals with limited physical, sensory, or mental abilities only if they are supervised and understand how to use it safely. • Children should not play with this device. • Children should not clean or maintain the device without adult supervision. Information on Disposal for Users of WEEE The wheelie bin symbol on the product(s) and / or accompanying documents means that used electrical and electronic equipment (WEEE) should not be mixed with general household waste. For proper treatment, recovery and recycling, please take this product(s) to designated collection points where it will be accepted free of charge. Please contact your local authority for further details of your nearest designated collection point. • This power bank has a built-in, non-replaceable battery. Do not open the product. • For disposal, contact your local recycling center. • Keep the power bank away from water and liquids. • Turn the device o before cleaning; use a dry, soft cloth only. • Operating temperature: 34°F-113°F (1°C-45°C). • Do not drop, crush, bend, puncture, disassemble, microwave, incinerate, or insert objects into the product. • Do not use the device in wet areas. If it gets wet, turn it o and let it dry completely. Do not use external heat to dry it. • Do not use your phone while it is wirelessly charging to avoid overheating. • Do not leave the device unattended while charging. For Parents & Guardians Parts Descriptions: 1. Power On/O: Press the power button once to turn the device ON. Double-press the power button to turn the device OFF. 2. Charging Your Phone: Use the power bank to charge your phone directly, or Connect the power bank to the charging stand and place your phone on the wireless charging pad. 3. Recharging the Power Bank: Connect the power bank to a standard USB port or suitable adapter using a Type-C cable. 4. Charging Stand Functions: The charging stand can charge your earbuds, smartwatch, and phone simultaneously. NOTE: Fully charge the power bank before rst us Instructions: Specications: Safety Information: 1. 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. (2)This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Note: 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 o 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 dierent 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 requirement. The device can be used in portable exposure condition without restriction. (For Model: SJ-109) The device has been evaluated to meet general RF exposure requirement. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and your body. (For Model: SJ-109-A) FCC Statement SJ-109 3-in-1 Wireless Charger with Detachable 10,000mAh Power Bank INSTRUCTION MANUAL PLEASE READ ALL INSTRUCTIONS CAREFULLY AND RETAIN FOR FUTURE USE Charging Stand Input5V/3A, 9V/2A Type-C Input5V/3A, 9V/2A Type-C Output5V/3A,9V/2.22A,12V/1.67A Wireless Charging for Earbuds3W Wireless Charging for Watch2W Wireless Charging for Phones 5W/7.5W/10W/15W(MAX) Battery Capacity10000mAh Product Unfold Size3.07" × 3.70" × 6.14" Product Fold Size3.07" × 1.45" × 6.14" Product Weight0.734 lb Contact Pin Magnetic Adsorption Contact Pin Wireless Charging for Watch Wireless Charging Pad Type-C lnput/Output Power Button Indicator Light Connector Indicator wireless Charging for Earbuds SJ-109-ASJ-109

* theapplicantmustdesignateacontactlocatedintheUnitedStatesforpurposesofactingasthe applicant’sagentforserviceofprocess,regardlessofwhethertheapplicantisadomesticorforeign entity.AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforserviceofprocess. SC6012997 U.S.AgentDesignationforServiceofProcess- CertificationAttestationLetter 1/14/2026 TO:FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 ATTN.:ReviewingEngineer FCCID:2A4C5-SJ-109-A FRNofapplicant:0031891609 Persection2.911(d)(7)oftheFCCrules,[CosmoFiberCorp.FRN:0031891609](“theapplicant”) certifiesthattheequipmentforwhichauthorizationissoughtisdesignatedtothefollowingU.S. agent*forserviceofprocess: CompanyName:GlobalProductServicesandConsultationLLC FCCRegistrationNumber(FRN):0033406703 PhysicalU.S.CompanyAddress:328WPalmAve.,Monrovia,CA91016,UnitedStates ContactPerson:MichaelChan Tel:+16263664358 AgentEmailAddress:[email protected] Theabovecontactpersonacceptstheobligationforserviceofprocess. Theapplicantacceptstomaintainanagentfornolessthanoneyearafterthegranteehas terminatedallmarketingandimportationortheconclusionofanyCommission-related proceedinginvolvingtheequipment. ApplicantSigned:AgentSigned(ifdifferentfromApplicant): Signed: Printedname:SidneyRu Title:Manager CompanyName:CosmoFiberCorp. Address:1802SantoDomingoAve,Duarte,CA 91010 Signed: Printedname:MichaelChan Title:TechnicalDirector CompanyName:GlobalProductServicesand ConsultationLLC Date:1/16/2026 Date:1/14/2026

Cosmo Fiber Corp. 2026-01-14 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: 2A4C5-SJ-109-A) [Cosmo Fiber Corp.] (“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. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, Sidney Ru Manager Cosmo Fiber Corp. 1802 Santo Domingo Ave,Duarte, CA 91010 Cosmo Fiber Corp. 2026-01-14 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: 2A4C5-SJ-109-A) [Cosmo Fiber Corp.] (“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, Sidney Ru Manager Cosmo Fiber Corp. 1802 Santo Domingo Ave,Duarte, CA 91010

External Photographs View of EUT-1 View of EUT-2 Page 2 of 5 View of EUT-3 View of EUT-4 Page 3 of 5 View of EUT-5 View of EUT-6 Page 4 of 5 View of EUT-7 View of EUT-8 Page 5 of 5 View of EUT-9

充电宝丝印：877C银色 丝印尺寸：34*20mm 3-in-1 Wireless Charger with Detachable 10,000mAh Power Bank Model: SJ-109 Battery Capacty: 3.85V 10000mAh (38.5Wh) Type-C Input: 5V⎓3A, 9V⎓2A Type-C Output: 5V⎓3A, 9V⎓2.22A, 12V⎓1.67A Wireless Charger for Phone: 5W/7.5W/10W/15W(MAX) Wireless Charger for Watch: 2W FCC ID: 2A4C5-SJ-109 3-in-1 Wireless Charger with Detachable 10,000mAh Power Bank Model: SJ-109-A Charging Stand Input: 5V⎓3A, 9V⎓2A Wireless Charger for Earphone: 3W FCC ID: 2A4C5-SJ-109-A 3-in-1 Wireless Charger with Detachable 10,000mAh Power Bank Model: SJ-109-A Charging Stand Input: 5V⎓3A, 9V⎓2A Wireless Charger for Earphone: 3W FCC ID: 2A4C5-SJ-109-A 34mm 20mm 29.5 mm 19.5 mm

Internal Photographs Internal View of EUT-1 Internal View of EUT-2 Page 2 of 3 Internal View of EUT-3 Internal View of EUT-4 Page 3 of 3 Internal View of EUT-5 Internal View of EUT-6

EUT Specification FCC ID: 2A4C5-SJ-109-A Characteristics Description Product Name 3-in-1 Wireless Charger with Detachable 10,000mAh Power Bank Model number SJ-109-A Series Model / Power Supply DC 5V, 9V Operating Frequency Range 111-205KHz for Earphone charging Modulation Technique ASK Antenna Type Coil Antenna Device category Portable (<20cm separation) Mobile (>20cm separation) Others ___ Antenna diversity Single antenna Multiple antennas Tx diversity Rx diversity Tx/Rx diversity Evaluation applied MPE Evaluation SAR Evaluation 2 / 7 Applicable Standard: FCC Part 1(1.1310), Part 2(2.1093) and KDB 680106 D01 Wireless Power Transfer v04 Applicable Requirement: Three different categories of transmitters are defined by the FCC in OET Bulletin 65. These categories are fixed installation, mobile, and portable and are defined as follows: Fixed Installations: fixed location means that the device, including its antenna, is physically secured at a permanent location and is not able to be easily moved to another location. Additionally, distance to humans from the antenna is maintained to at least 2 meters. Mobile Devices: a mobile device is defined as a transmitting device designed to be used in other than fixed locations and to be generally used in such a way that a separation distance of at least 20 centimeters is normally maintained between the transmitter's radiating structures and the body of the user or nearby persons. Transmitters designed to be used by consumers or workers that can be easily re-located, such as a wireless modem operating in a laptop computer, are considered mobile devices if they meet the 20 centimeter separation requirement. The FCC rules for evaluating mobile devices for RF compliance are found in 47 CFR ß2.1091. Portable Devices: a portable device is defined as a transmitting device designed to be used so that the radiating structure(s) of the device is/are within 20 centimeters of the body of the user. Portable device requirements are found in Section 2.1093 of the FCC's Rules (47 CFRß2.1093). The FCC also categorizes the use of the device as based upon the user’s awareness and ability to exercise control over his or her exposure. The two categories defined are Occupational/ Controlled Exposure and General Population/Uncontrolled Exposure. These two categories are defined as follows: Occupational/controlled exposure limits apply in situations in which persons are exposed as a consequence of their employment provided those persons are fully aware of the potential for exposure and can exercise control over their exposure. Limits for occupational/controlled exposure also apply in situations when a person is transient through a location where occupational/controlled limits apply provided he or she is made aware of the potential for exposure. The phrase fully aware in the context of applying these exposure limits means that an exposed person has received written and/or verbal information fully explaining the potential for RF exposure resulting from his or her employment. With the exception oftransient persons, this phrase also means that an exposed person has received appropriate training 3 / 7 regarding work practices relating to controlling or mitigating his or her exposure. Such training is not required for transient persons, but they must receive written and/or verbal information and notification (for example, using signs) concerning their exposure potential and appropriate means available to mitigate their exposure. The phrase exercise control means that an exposed person is allowed to and knows how to reduce or avoid exposure by administrative or engineering controls and work practices, such as use of personal protective equipment or time averaging of exposure. General population/uncontrolled exposure limits apply in situations in which the general public may be exposed, or in which persons who are exposed as a consequence of their employment may not be fully aware of the potential for exposure or cannot exercise control over their exposure. Licensees and applicants are responsible for compliance with both the occupational/controlled exposure limits and the general population/uncontrolled exposure limits as they apply to transmitters under their jurisdiction. Licensees and applicants should be aware that the occupational/controlled exposure limits apply especially in situations where workers may have access to areas in very close proximity to antennas and access to the general public may be restricted. In lieu of evaluation with the general population/uncontrolled exposure limits, amateur licensees authorized under part 97 of this chapter and members of his or her immediate household may be evaluated with respect to the occupational/controlled exposure limits in this section, provided appropriate training and information has been provided to the amateur licensee and members of his/her household. Other nearby persons who are not members of the amateur licensee's household must be evaluated with respect to the general population/uncontrolled exposure limits. 4 / 7 Test Setup Block Test Procedure 1.Connect the EUT and equipment as above diagram of test configuration. 2.EUT was placed on a table, and the measure probe was placed at a measurement distance of 20cm from the EUT to the center of the probe. 3.Power on the measuring probe, the EUT was set at the maximum field strength emission state. 4.The EUT was put in different directions (Left, Right, Front, Rear, Top and Bottom) toward to the measure probe. The distance from the top of the EUT to the probe is 20CM, and the distance from other directions is 20cm.Measure the value of field strength. 5.Record the worst data of the different directions. Measuring Device And Test Equipment Used Equipment Manufacturer Model No. Serial No. Last Cal. Due Date  E&H-Field Probe(9kHz-30M Hz) Narda EHP-200A 180ZX11012 2025/08/28 2026/08/27 5 / 7 Description of Support Device Adapter ： Model number: MDY-11-EX Input: 100-240V~ 50/60Hz…

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深圳市宸兴电子技术有限公司 公司名称：深圳市宸兴电子技术有限公司 工厂地址：深圳市宝安区新安街道大宝路51号新柯城科技工业园1栋5楼 第 1 页 产品规格书 PRODUCTSPECIFICATIONFORAPPROVAL 客户名称： CUSTOMER 铭景天 产品名称： PRODUCTNAME 发射线圈 物料编码： PARTNo. 1107000011 产品规格： PRODUCTSPEC 感量规格：6.3uH±10% 磁片规格：43.5*5.3*0.8双槽 线材规格：0.08*105*10Ts（20mm内径） 出线长度：80mm 普通双面胶/8mm高温胶带 日期： DATE 2026年01月04日 版本型号： VERSION REV1.0 版本 Revision 变更内容 ModifiedContent 责任人 Principle 日期 Date 备注 Note REV1.0首次发布薛磊2026-01-04 制定/PREPAREDBY审核/CHECKEDBY核准/APPROVEDBY 客户认可签名及盖章 Authorizedsignature& companychop 附上的是产品规格书，有任何疑问，请及时反馈给我们，谢谢 ! 深圳市宸兴电子技术有限公司 公司名称：深圳市宸兴电子技术有限公司 工厂地址：深圳市宝安区新安街道大宝路51号新柯城科技工业园1栋5楼 第 2 页 产品规格 SPECIFICATION 一、产品尺寸 磁片直径 A 线圈外径 43.5±0.3mm B39±1.5mm 线圈内径C 产品厚度 20±0.5mm D<2.4mm 出线长度E 焊锡长度 80mm±2mm F3±1mm 磁片开孔直径G5±0.3mm 磁片厚度0.8±0.1mm 磁片形状圆形双槽 背胶厚度普通双面胶 防碎黑膜不 深圳市宸兴电子技术有限公司 公司名称：深圳市宸兴电子技术有限公司 工厂地址：深圳市宝安区新安街道大宝路51号新柯城科技工业园1栋5楼 第 3 页 二、原理图 三、绕线参数 端子 TERMINAL 线径 WIRE 圈数 Turns 绕线方向 WindingDirection SF 丝包线 0.08*105P CC10TsW 四、电气特性： 温度TEMPERATURE:25±10°C,湿度RELATIVEHUMIDITY:65±20% 项目 ITEM 端子 TERMINAL 标准 SPECIFICATION 测试条件 TESTFREQUENCY 测试仪器 TESTEQUIPMENTS IND.S-F L ： 6.3uH±10% 100KHz/1.0VVOCTOR4092D

CFR 47 FCC PART 15 SUBPART C TEST REPORT For 3-in-1 Wireless Charger with Detachable 10,000mAh Power Bank MODEL NUMBER: SJ-109-A REPORT NUMBER: E04A25111103F00601 ISSUE DATE: December 22, 2025 FCC ID: 2A4C5-SJ-109-A Prepared for Cosmo Fiber Corp. 1802 Santo Domingo Ave,Duarte, CA 91010 Prepared by Guangdong Global Testing Technology Co., Ltd. Room 101-105, 203-210, Building 1, No.2, Keji 8 Road, Songshan Lake Park, Dongguan city, Guangdong, People’s Republic of China, 523808 This report is based on a single evaluation of the submitted sample(s) of the above mentioned product, it does not imply an assessment of the production of the products. This report shall not be reproduced, except in full, without the written approval of Guangdong Global Testing Technology Co., Ltd. REPORT NO.: E04A25111103F00601 Page 2 of 26 Revision History Rev. Issue Date Revisions Revised By V0 December 22, 2025 Initial Issue REPORT NO.: E04A25111103F00601 Page 3 of 26 Summary of Test Results Test Item Limit/Requirement Result Antenna Requirement FCC Part 15.203 Pass AC Power Line Conducted Emission FCC Part 15.207 Pass 20dB Bandwidth FCC Part 15.215 Pass Radiated Emission FCC Part 15.205/15.209 Pass Note: 1. N/A: In this whole report not applicable. *This test report is only published to and used by the applicant, and it is not for evidence purpose in China. *The measurement result for the sample received is <Pass> according to <CFR 47 FCC PART 15 SUBPART C> when <Accuracy Method> decision rule is applied. REPORT NO.: E04A25111103F00601 Page 4 of 26 CONTENTS 1. ATTESTATION OF TEST RESULTS ......................................................................... 5 2. TEST METHODOLOGY ............................................................................................. 6 3. FACILITIES AND ACCREDITATION ......................................................................... 6 4. CALIBRATION AND UNCERTAINTY ........................................................................ 7 4.1. MEASURING INSTRUMENT CALIBRATION ................................................ 7 4.2. MEASUREMENT UNCERTAINTY ................................................................ 7 5. EQUIPMENT UNDER TEST ....................................................................................... 8 5.1. DESCRIPTION OF EUT ................................................................................ 8 5.2. TEST MODE ................................................................................................. 8 5.3. SUPPORT UNITS FOR SYSTEM TEST ....................................................... 9 5.1. EUT ACCESSORY ........................................................................................ 9 5.2. SETUP DIAGRAM ......................................................................................... 9 6. MEASURING EQUIPMENT AND SOFTWARE USED ............................................. 10 7. RADIATED TEST RESULTS ................................................................................... 11 7.1. Radiated Spurious Emission ........................................................................ 15 8. AC POWER LINE CONDUCTED EMISSION ............................................................. 2 9. 20DB BANDWIDTH ................................................................................................... 5 10. ANTENNA REQUIREMENT .......................................................................... 7 REPORT NO.: E04A25111103F00601 Page 5 of 26 1. ATTESTATION OF TEST RESULTS Applicant Information Company Name: Cosmo Fiber Corp. Address: 1802 Santo Domingo Ave,Duarte, CA 91010 Manufacturer Information Company Name: Shenzhen Ground Enterprises Co.,Ltd. Address: 6th Floor, Building F, MingYueHuaDu, Gonghe industrial Rd., XiXiang, Bao’an, Shenzhen China 518102 EUT Information Product Description: 3-in-1 Wireless Charger with Detachable 10,000mAh Power Bank Model: SJ-109-A Series Model: / Brand: / Sample Received Date: December 5, 2025 Sample Status: Normal Sample ID: A25111103 004 Date of Tested: December 6, 2025 to December 17, 2025 APPLICABLE STANDARDS STANDARD TEST RESULTS CFR 47 FCC PART 15 SUBPART C Pass Prepared By: Checked By: Ellie Yang Alan He Project Engineer Laboratory Leader Approved By: Shawn Wen Laboratory Manager REPORT NO.: E04A25111103F00601 Page 6 of 26 2. TEST METHODOLOGY All tests were performed in accordance with the standard CFR 47 FCC PART 15 SUBPART C 3. FACILITIES AND ACCREDITATION Accreditation Certificate A2LA (Certificate No.: 6947.01) Guangdong Global Testing Technology Co., Ltd. has been assessed and proved to be in compliance with A2LA. FCC (FCC Designation No.: CN1343) Guangdong Global Testing Technology Co., Ltd. has been recognized to perform compliance testing on equipment subject to Supplier's Declaration of Conformity (SDoC) and Certification rules ISED (Company No.: 30714) Guangdong Global Testing Technology Co., Ltd. has been registered and fully described in a report filed with ISED. The Company Number is 30714 and the test lab Conformity Assessment Body Identifier (CABID) is CN0148. Note: All tests measurement facilities use to collect the measurement data are located at Room 101-105, 203-210, Building 1, No.2, Keji 8 Road, Songshan Lake Park, Dongguan city, Guangdong, People’s Republic of China, 523808 REPORT NO.: E04A25111103F00601 Page 7 of 26 4. CALIBRATION AND UNCERTAINTY 4.1. MEASURING INSTRUMENT CALIBRATION The measuring equipment utilized to perform the tests documented in this report has been calibrated in accordance with the manufacturer's recommendations and is traceable to recognized national standards. 4.2. MEASUREMENT UNCERTAINTY Where relevant, the following measurement uncertainty levels have been estimated for tests performed on the apparatus: Test Items k Uncertainty 20dB Emission Bandwidth 2 ±9.2 PPM Temperature 2 ±0.5°C Humidity 2 ±3% Note: This uncertainty represents an expanded uncertainty expressed at approximately the 95% confide…

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Setup Photographs AC Power Line Conducted Emission Radiated Spurious Emission Page 2 of 2 RF Exposure Evaluation