2A5AQ-H501Bluetooth Speaker

Bluetooth Speaker User Manual Thankyou for your choosethis product.Your recognitionhas alwaysbeen our driving force. 1:Instruction: Beforeusing this productpls carefullyread the instructionfirst, to avoid any confused. 1: Firstlypleasepress the switchon/offbuttonof this product.Then open your smart devicesto connectthe Bluetoothnam e “SmartfyAquaSound”, successfullyconnected you will hearingthe “Beep ” voice promptfor paring. 2: After connectedthe Bluetooth,you can play any musicon your smart devicesanytime anywherethen. 2:How to using: Followspicturefor the productbuttonsinstruction. 1:SwitchOn/OffButton. 1)ShortpressforPause/Play. 2)Longpressof3secondforSwitchon/off. 3)Longpress8secondforresetfunction. 4)DualpressforAurocastmode(Broadcastmode,1toNconnection). 5)TripepressforSoundqualitychecking. 6)Fourpressforawakevoiceassistant(Google/Siri). 2:VolumeDown/PreviousSongButton. 1)Longpresstogobacktotheprevioustrack/song. 2)Shortpressforvolumedown. 3:LightButton. 1)Shortpressforlightmodechange(Lighteffect1,2,3,4etc). 2)Longpressforswitchon/offlight. 3)Dualpressfordis-connect/re-connectBluetooth. 4)Tripepressforclearpairedlist.. 4:VolumeUp/NextSongButton. 1)Longpresstoskiptothenexttrack/song. 2)Shortpressforvolumeup. 5:USB-C/Type-cChargingport(DC5V) 1)Theusercanconnectthechargingcableforgetchargingiftheunitbatteryislowand thevoicepromptisreminding,wesuggesttouseanadaptorofDC5V2A. 2)Duringthechargingstate,thechargingLEDindicatorissolidredincolor. 3)Oncethebatterygetsfullycharged,changingLEDturnsoff. Note:Pleasedon’tusethespeakerwhileitisinchargingasitmaydecreasethebattery’s performance. NOTE: 1)Playtimevariesaccordingtothelevelofvolume. 2)Ifthespeakerdoesn’tturnoffordoesn’trespondproperly,youcouldusetheReset functionality. 3)Thespeakercanautomaticallyreconnectedtothelastpaireddevice. 4)Thespeakergetsautomaticallyturnedoffifthere’snopairingestablishedin10minutes. 5)Pleasekindlyusethespeakeroutsidefor1toNconnection,otherwisemightbringnot gooduseexperienceforyou. LEDINDICATOR: 1)TurnthespeakeronandtheLEDblinksinbluecolor. 2)TheLEDturnssteadyafterconnectedwithsmartdevices. 1)TheLEDblinksinbluecolorwhenplaying. 2)TheLEDissolidredwhencharging. 3)TheLEDisoffwhenfullcharged. TWSCONNECTION: 1)Turnthespeakeronthatyourequiretobeforgedintoone,bothunderBluetoothmode. Youneedtosetuponlyoneofthetwounits. 2)DoublepressthePause/PlaybuttonononeofspeakertoestablishTWSconnectivity. 3)AtonegetsheardagainalongwiththeBlueLEDturningsteady;itmaytakeafew secondsbeforethetwospeakergetconnected. 4)Activatethephone’sBluetoothandsearchfor“SmartfyAquaSound”toestablish pairing. SPECIFICATIONS: BluetoothChipsetAC7065E V5.4 PowerAmplifierLTK5315 WorkingRange10m SpeakerDriver52 mm, 5W / 4Ω (Output:5W, RMS: 5W 10% THD) BatteryCapacity3.7V/1 200mA h ChargingInterfaceUSB-C/Type-c WaterResistanceIPX 6 StandbyTime200H FrequencyResponse20-20 kHz CompatibilityBluetooth,answercalling,Aurocast, RGB lights ChargingTimeUp to 2H Play TimeUp to 8H at 50% volume(Playtime variesaccordingto the volumeand music) WARNING: 1) Pleasekeep this productsafe from comingin contactwith any liquid. 2) Don ’t use/storethis productin extremetemperatures. 3) Pleasekeep the productaway from anythingthat generatesheat, such as radiators, stoves,etc. 4) In order to have hearingprotectionand an extendedspeakerlife, avoid listeningto songson maximumvolume. 5) Don ’t try dismantle/repairthe producton your own. FCC Caution: Thisdevicecomplieswithpart15 of the FCC Rules.Operationis subjectto the followingtwo conditions:(1) The devicemaynot causeharmfulinterference,and (2) this devicemustacceptany interferencereceived,includinginterferencethat may causeundesiredoperation. FCC Statement ： Changesor modificationsnot expresslyapprovedby the partyresponsiblefor compliancecould void the user'sauthorityto operatethe equipment. This equipmenthas beentestedand foundto complywiththe limitsfor a ClassB digitaldevice, pursuantto Part 15 of the FCC Rules.Theselimitsare designedto providereasonable protectionagainstharmfulinterferencein a residentialinstallation.This equipmentgenerates usesand can radiateradiofrequencyenergyand, if not installedand usedin accordancewith the instructions,may causeharmfulinterferenceto radiocommunications.However,thereis no guaranteethat interferencewill not occurin a particularinstallation.If this equipmentdoes 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 This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. The device can be used in portable exposure condition without restriction. Thankyou for your reading,hope you have a nice experience!

Shenzhen Hengchuang Intelligent Electronic Technology Co.,Ltd (15A061, Building C, No. 3 Langjing Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen City, Guangdong, China) Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: (2026/3/23) 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2A5AQ-H501 Shenzhen Hengchuang Intelligent Electronic 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, established pursuant to § 1.50002 of reference chapter, as an entity producing “covered” communication equipment. The equipment for which authorization is sought is not “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List that prohibited from receiving an equipment authorization pursuant to section § 2.903 of the FCC rules. Sincerely yours, Applicant Signature Printed Name: Duncan Deng Title: Sales Manager Address: 15A061, Building C, No. 3 Langjing Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen City, Guangdong, China Tel.: +86-755-36882183 Email: [email protected]

1 | P a g e Shenzhen Hengchuang Intelligent Electronic Technology Co.,Ltd (15A061, Building C, No. 3 Langjing Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen City, Guangdong, China) Attestation Statements To: Federal Communications Commission Date: (2026/3/23) 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: [2A5AQ-H501] Product Name: [Bluetooth Speaker] This letter serves as an attestation that the equipment identified above ☐ is / ☒ is not (select one) "covered" software as defined under the Federal Communications Commission (FCC) Covered List requirements, as outlined in FCC 22-84 and KDB 986446. Specifically, the undersigned certifies that the equipment for which authorization is sought: 1. Does not contain cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors, assignees, parents, subsidiaries, affiliates, or any entity that has rebranded or relabeled software produced by the aforementioned entities. 2. Does not have the capability to store, run, or deliver any software identified on the FCC Covered List, including but not limited to cybersecurity and anti-virus software. To support this attestation, the appendix evaluation documentation has been prepared and is included in the certification filing. This attestation is based on a thorough evaluation of the device's design, functionality, and software environment. The undersigned affirms that the information provided is accurate and complete to the best of their knowledge. Sincerely yours, Applicant Signature Applicant Signature Printed Name: Duncan Deng Title: Sales Manager Address: 15A061, Building C, No. 3 Langjing Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen City, Guangdong, China 2 | P a g e Evaluation regarding to the Covered List Software: Compliance Methodology Evaluation Process Results Device is Inherent compliance ☒ The Chipset(s) used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ The Memory used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ There is storage capacity limitation for store or install the Cybersecurity or anti-virus software. Compliance ☒ Operating system used is limited to run, install or deliver the Cybersecurity or anti-virus software. Compliance Device is not Inherent compliance ☐ Evaluation Based on Software Bill of Materials (SBoM) See attached “SBoM“ Note:The SBoM content is limited to the scope of covered list software (e.g. antivirus and cybersecurity software). ☐ Evaluation Based on Scan for Software on the device ☐ Evaluation Based on Filesystem scan ☐ Evaluation Based on Running software check

AttestationStatements (2026/3/23) TO:FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046,USA RE:AttestationStatementsPart2.911(d)(7)requestfor(FCCID:2A5AQ-H501) (ShenzhenHengchuangIntelligentElectronicTechnologyCo.,Ltd),theundersigned, herebyauthorizeANTEKSERVICEINCtoactasourdesignatedU.S.agentforservice ofprocess,(ShenzhenHengchuangIntelligentElectronicTechnologyCo.,Ltd)acceptsto maintainanagentfornolessthanoneyearafterthegranteehasterminatedall marketingandimportationortheconclusionofanyCommission-relatedproceeding involvingtheequipment. ANTEKSERVICEINC acceptstheresponsibilitytoactasdesignatedU.S.agentfor serviceofprocess. ApplicantInformation： CompanyName:ShenzhenHengchuangIntelligentElectronicTechnologyCo.,Ltd Address:15A061,BuildingC,No.3LangjingRoad,XinshiCommunity,DalangStreet, LonghuaDistrict,ShenzhenCity,Guangdong,China ContactName:DuncanDeng FRN:0032040131 TelephoneNo:+86-755-36882183 Email:[email protected] Signature [DuncanDeng] U.S.AgentInformation: CompanyName:ANTEKSERVICEINC Address:901NPENNSYLVANIASTSTE0DENVER,CO80203 FRN:0033437609 ContactName:ShirleyKwok TelephoneNo:01303-8006306 Email:[email protected] Signature [ShirleyKwok]

Shenzhen Hengchuang Intelligent Electronic Technology Co.,Ltd (15A061, Building C, No. 3 Langjing Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen City, Guangdong, China) (2026/3/23) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2A5AQ-H501 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request permanent confidential treatment of the exhibits accompanying this certification application as outlined below : ⎯ Block Diagram ⎯ Schematics ⎯ Operational Description The above exhibits contain trade secrets and/or proprietary information that are not publicly available and materials that the Applicant has spent considerable efforts in developing. Public disclosure of these may be harmful to the Applicant and give an unfair advantage to competitors on the market. Sincerely, (Signature) Title: Sales Manager Address: 15A061, Building C, No. 3 Langjing Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen City, Guangdong, China Tel.: +86-755-36882183 Email: [email protected]

Shenzhen Hengchuang Intelligent Electronic Technology Co.,Ltd (15A061, Building C, No. 3 Langjing Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen City, Guangdong, China) (2026/3/23) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2A5AQ-H501 I, the undersigned, hereby authorize (Shenzhen STS Test Services Co., Ltd.) to act on our behalf in all matters relating to this application for equipment certification. Any act carried out by (Shenzhen STS Test Services Co., Ltd.) shall have the same effect as our own and I acknowledge that all responsibility for complying with the terms and conditions of certification, as specified by DERYCOM CERTIFICATION SERVICES, INC., still resides with (Shenzhen Hengchuang Intelligent Electronic Technology Co.,Ltd). We certify that we are not subject to a denial of federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862, and that no party to the application, as defined in 47 CFR §1.2002(b), is subject to a denial of federal benefits that includes FCC benefits pursuant to that section. Sincerely, (Signature) (Full name of contact person listed on FCC’s website): Duncan Deng (Title): Sales Manager Tel: +86-755-36882183 Fax: / Email: [email protected]

Shenzhen Hengchuang Intelligent Electronic Technology Co.,Ltd Model Difference 2026/3/23 EUT NAME: Bluetooth Speaker Trademark: RSSIDOL MODEL: H501 H501 Pro, K100, K200, K300, K400, K600, K800, K900 FCC ID: 2A5AQ-H501 All the models are the same circuit and RF module, except model names. Regards Sincerely Client’s signature: Client’s name / title : Duncan Deng / Sales Manager Contact information / address: 15A061, Building C, No. 3 Langjing Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen City, Guangdong, China

Page 1 of 8 FCC ID: 2A5AQ-H501 External Photos Page 2 of 8 FCC ID: 2A5AQ-H501 Page 3 of 8 FCC ID: 2A5AQ-H501 Page 4 of 8 FCC ID: 2A5AQ-H501

Label & label location Location: Label: FCC ID: 2A5AQ-H501

Page 5 of 8 FCC ID: 2A5AQ-H501 Internal Photos Page 6 of 8 FCC ID: 2A5AQ-H501 Page 7 of 8 FCC ID: 2A5AQ-H501 Antenna Page 8 of 8 FCC ID: 2A5AQ-H501

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. MPE Report Report No.: STS2601311H01 Issued for Shenzhen Hengchuang Intelligent Electronic Technology Co.,Ltd 15A061, Building C, No. 3 Langjing Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen City, Guangdong, China Product Name: Bluetooth Speaker Brand Name: RSSIDOL Model Name: H501 Series Model(s): H501 Pro, K100, K200, K300, K400, K600, K800, K900 FCC ID: 2A5AQ-H501 Test Standards: FCC 47CFR §2.1093 Page 2 of 8 Report No.: STS2601311H01 TEST REPORT Applicant’s Name ................. : Shenzhen Hengchuang Intelligent Electronic Technology Co.,Ltd Address ................................. : 15A061, Building C, No. 3 Langjing Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen City, Guangdong, 518109, China Manufacturer's Name ........... : Shen Zhen Hong Xing Da Technology Co.,Ltd Address ................................. : Room 401, 4/F, Building 3, Hao'er Jia'shi'tai Industrial Park, No. 164, Feng'tang Avenue, Zhan'cheng Community, Fu'hai Street, Bao'an District, Shenzhen; Post code: 518100; Product Description Product Name ........................ : Bluetooth Speaker Brand Name .......................... : RSSIDOL Model Name .......................... : H501 Series Model(s) ...................... : H501 Pro, K100, K200, K300, K400, K600, K800, K900 Test Standards ..................... : FCC 47CFR §2.1093 447498 D01 Interim General RF Exposure Guidance v06 The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. Date of Test ........................................... : Date of receipt of test item ...................... : 30 Dec. 2025 Date (s) of performance of tests ............. : 30 Dec. 2025 to 07 Jan. 2026 Date of Issue .......................................... : 07 Jan. 2026 Test Result .............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 8 Report No.: STS2601311H01 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 5 2. FCC 47CFR §2.1093 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 TEST RESULT 8 Page 4 of 8 Report No.: STS2601311H01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 07 Jan. 2026 STS2601311H01 ALL Initial Issue Page 5 of 8 Report No.: STS2601311H01 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name Bluetooth Speaker Brand Name RSSIDOL Model Name H501 Series Model(s) H501 Pro, K100, K200, K300, K400, K600, K800, K900 Model Difference All the model are the same circuit and RF module, except model names Product Description The EUT is Bluetooth Speaker Operation Frequency: 2402 – 2480 MHz Modulation Type: GFSK(1Mbps), π/4-DQPSK(2Mbps) Antenna Type: PCB Antenna Gain (dBi) -0.58 Power Rating DC 5V from adapter Adapter N/A Battery DC 3.7V Hardware Version N/A Software Version N/A 1.2 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 Page 6 of 8 Report No.: STS2601311H01 2. FCC 47CFR §2.1093 REQUIREMENT 2.1 TEST STANDARDS The limit for Maximum Permissible Exposure (MPE) specified in KDB 447498 D01 General RF Exposure Guidance v06 is followed. The gain of the antennas used in the product is extracted from the Antenna data sheets provided and also the maximum total power input to the antenna is measured. Through the Friis transmission formula and the maximum gain of the antenna, we can calculate the distance, away from the product, where the limit of MPE is reached. Although the Friis Transmission formula is far field assumption, the calculated result of that is an over-prediction for near field power density. It is taken as worst case to specify the safety range. 2.2 LIMIT Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. Page 7 of 8 Report No.: STS2601311H01 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 The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. Page 8 of 8 Report No.: STS2601311H01 2.3 TEST RESULT Maximum measured transmitter power. Worst Case Mode frequency Maximum Output Power Tune up tolerance Max Tune up GHz dBm dBm dBm BT 2.441 -0.43 0±1 1 Evaluation Result Mode Frequency Antenna Distance RF output power including tune up (dBm) SAR Test Exclusion Threshold SAR Test Exclusion Estimated SAR GHz mm dBm mw BT 2.441 5 1 1.26 0.394 Yes / Note: 1. Threshold at which no SAR required for 1-g SAR ≤ 3.0, Separation distance ≤ 5mm. ※※※※※END OF THE REPORT※※※※※

Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT Center Frequency Horizontal Vertical 2400MHz 2450MHz 2500MHz 2400MHz 2450MHz 2500MHz - 1.26 -0.76 -0.58 -5.25 -2.46 - 1.86 MAX. Gain -0.58dB Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Brand/Model 96kg-03 Manufacture Shenzhen Xin Ling Bo Electronics Co.、Ltd. TEL:0755-27329130 Manufa cturer’s address 4th Floor, Elevator C, Guanhongtai Building, No. 575 Gushu 1st Road, Xixiang Street, Bao'an District, Shenzhen Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Frequency (MHz) Gain(dB) Max Min Avg 2400 - 1.26174 -30.0801 -7. 18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Frequency (MHz) Gain(dB) Max Min Avg 2400 -5.2537 -22. 1424 - 12.4294 2450 -2.4652 -24.5837 - 10.4702 2500 - 1.86120 -29.5214 -9.20432 ANT Test Labs ：Attestation of Global Compliance Co., Ltd.

Product Name: Bluetooth Speaker Brand Name: RSSIDOL Model Name: H501 Series Model(s): H501 Pro, K100, K200, K300, K400, K600, K800, K900 FCC ID: 2A5AQ-H501 Test Standards: FCC Part15.247 The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Radio Test Report Report No.: STS2601311W01 Issued for Shenzhen Hengchuang Intelligent Electronic Technology Co.,Ltd 15A061, Building C, No. 3 Langjing Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen City, Guangdong, China Page 2 of 80 Report No.: STS2601311W01 TEST REPORT Applicant’s Name ................. : Shenzhen Hengchuang Intelligent Electronic Technology Co.,Ltd Address ................................. : 15A061, Building C, No. 3 Langjing Road, Xinshi Community, Dalang Street, Longhua District, Shenzhen City, Guangdong, 518109, China Manufacturer's Name .......... : Shen Zhen Hong Xing Da Technology Co.,Ltd Address ................................. : Room 401, 4/F, Building 3, Hao'er Jia'shitai Industrial Park, No.164, Feng'tang Avenue, Zhan'cheng Community, Fu'hai Street, Bao'an District, Shenzhen; Postcode: 518100; China Product Description Product Name........................ : Bluetooth Speaker Brand Name .......................... : RSSIDOL Model Name .......................... : H501 Series Model(s) .................... : H501 Pro, K100, K200, K300, K400, K600, K800, K900 Standards ............................. : FCC Part15.247 Test Procedure ...................... : ANSI C63.10-2020 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test ............................... : Date of receipt of test item ......... : 30 Dec. 2025 Date (s) of performance of tests . : 30 Dec. 2025 to 07 Jan. 2026 Date of Issue .............................. : 07 Jan. 2026 Test Result.................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 80 Report No.: STS2601311W01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 FREQUENCY HOPPING SYSTEM REQUIREMENTS 10 2.4 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 11 2.5 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 12 2.6 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 13 2.7 EQUIPMENTS LIST 14 3. EMC EMISSION TEST 15 3.1 CONDUCTED EMISSION MEASUREMENT 15 3.2 RADIATED EMISSION MEASUREMENT 19 4. CONDUCTED SPURIOUS & BAND EDGE EMISSION 33 4.1 LIMIT 33 4.2 TEST PROCEDURE 33 4.3 TEST SETUP 34 4.4 EUT OPERATION CONDITIONS 34 4.5 TEST RESULTS 34 5. NUMBER OF HOPPING CHANNEL 35 5.1 LIMIT 35 5.2 TEST PROCEDURE 35 5.3 TEST SETUP 35 5.4 EUT OPERATION CONDITIONS 35 5.5 TEST RESULTS 35 6. AVERAGE TIME OF OCCUPANCY 36 6.1 LIMIT 36 6.2 TEST PROCEDURE 36 6.3 TEST SETUP 36 6.4 EUT OPERATION CONDITIONS 36 6.5 TEST RESULTS 36 7. HOPPING CHANNEL SEPARATION MEASUREMEN 37 7.1 LIMIT 37 7.2 TEST PROCEDURE 37 Page 4 of 80 Report No.: STS2601311W01 Table of Contents Page 7.3 TEST SETUP 37 7.4 EUT OPERATION CONDITIONS 37 7.5 TEST RESULTS 37 8. BANDWIDTH TEST 38 8.1 LIMIT 38 8.2 TEST PROCEDURE 38 8.3 TEST SETUP 38 8.4 EUT OPERATION CONDITIONS 38 8.5 TEST RESULTS 38 9. OUTPUT POWER TEST 39 9.1 LIMIT 39 9.2 TEST PROCEDURE 39 9.3 TEST SETUP 40 9.4 EUT OPERATION CONDITIONS 40 9.5 TEST RESULTS 40 10. ANTENNA REQUIREMENT 41 10.1 STANDARD REQUIREMENT 41 10.2 EUT ANTENNA 41 APPENDIX 1-TEST DATA 42 DWELL TIME 42 MAXIMUM CONDUCTED OUTPUT POWER 49 -20DB BANDWIDTH 53 CARRIER FREQUENCIES SEPARATION 57 BAND EDGE 61 BAND EDGE(HOPPING) 66 CONDUCTED RF SPURIOUS EMISSION 71 NUMBER OF HOPPING CHANNEL 78 APPENDIX 2-PHOTOS OF TEST SETUP 80 Page 5 of 80 Report No.: STS2601311W01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 07 Jan. 2026 STS2601311W01 ALL Initial Issue Page 6 of 80 Report No.: STS2601311W01 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247(a)(1) Hopping Channel Separation PASS -- 15.247(a)(1)&(b)(1) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247(d) Conducted Spurious & Band Edge Emission PASS -- 15.247(a)(1)(iii) Number of Hopping Frequency PASS -- 15.247(a)(1)(iii) Dwell Time PASS -- 15.247(a)(1) Bandwidth PASS -- 15.205 Restricted bands of operation PASS -- Part 15.247(d)/part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- Note: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2020. Page 7 of 80 Report No.: STS2601311W01 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ±U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.751dB 2 Unwanted Emissions, conducted ±2.888dB 3 All emissions, radiated 9K-30MHz ±2.48dB 4 All emissions, radiated 30M-1GHz ±2.52dB 5 All emissions, radiated 1G-18GHz ±3.4…

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Page 1 of 2 FCC ID: 2A5AQ-H501 Conducted emissions 30MHz-1GHz Page 2 of 2 FCC ID: 2A5AQ-H501 Spurious emissions