2ATQ9-M88Wireless Kids ANC Headphone

产品名称：歌尚E88A蓝牙耳机 主要功能：蓝牙(通话)+AUX AUX功能：不开机插上即可使用；开机后插入AUX线自动 关闭蓝牙功能 开机状态：5分钟无设备连接自动关机 有效范围：约12米 工作频率：2.402-2.480GHz 电池规格：3.7V/1200mAH (内置可充电锂电池) 充电电压：DC4.2-5.5V 灵敏度：102±3dB/mW 喇叭直径：40mm 包装清单 ●一个蓝牙耳机主机 ●一根USB充电线 ●一根AUX-in 音频线 · 一本说明书 按键说明 1.“ - ”短按减音量/长按上 一 曲 3. “乙”开启/关闭/暂停/播放 功能说明 开机：长按“ ”三秒钟以上，设备启动自动进入蓝牙 模式，LED 指示灯蓝色长亮。 关机：长按“弋”三秒钟以上， LED 指示灯熄灭，设备关闭。 按健指引 1.接通电话：来电时短按“ ” 2. 挂断电话：通话中短按“ ” 3.回拨最后一次电号码：双击“ ” 4.播放音乐：正常状态下短按“ ”,自动打开智能设备播放音乐。 5.诵话后继续播放：有来电时，自动暂停播放中的音乐，通话结 束后，需要短按“ ”继续播放。 蓝牙模式 1. 首次配对：开机自动进入蓝牙模式，语音提示： "P ower on Pairing",LED指示灯蓝色长亮，1秒后如若搜 索不到最后一次与之连接的蓝牙设备，耳机自动进入蓝 牙配对模式，LED指示灯蓝红快速交替闪烁，打开智能设 备的蓝牙功能，开启搜索并选择设备“GS”, 无需密码，配 对成功后语音提示“Connected”,LED 指示灯蓝色长亮。 2. 后续配对：开机后会自动搜索并连接最后一次与 之配对的设备。 3. 最大音量警示音：“didi”。 4. 省电模式：匹配状态持续5分钟无任何操作，耳机自动关 机；插入AUX-in线自动切断供电。 5.国际通用Micro USB 充电口。 AUX- in 播放模式 在任意模式下，插入AUX-in 线，耳机自动关机，切换到 AUX-in功能，此时无需耗电。 TF 卡播放模式 关机情况下，插入TF卡，短按开机按钮三秒左右，蓝牙耳 机自动进入TF卡播放模式。 开机情况下，插入TF卡，蓝牙耳机自动进入TF卡播放模式。 同时按下“ 十 一 ”切换TF卡模和蓝牙模式。 *注意：TF卡最大支持容量为16GB,如使用超过16GB的 TF 卡，有可能导致系统无法播放音乐 LED灯状态 充电状态 红色LED指示灯长亮，满电时，指示灯熄灭 开机状态 蓝色LED指示灯长亮 关机提示 LED指示灯熄灭 配对状态 红蓝LED指示灯交替闪烁 连接成功 蓝色LED指示灯长亮 注意事项 ●蓝牙耳机进入配对模式后若无配对连接操作， 请关闭设备避免电量损耗。 ●搜索蓝牙耳机时，不要进行其他操作，以免程序出错。 ●在使用中请选择适当音量，以防对耳朵造成伤害。 ●请注意蓝牙耳机的良好使用环境，以防对耳机造成伤害。 ●长时间未使用耳机，请先将耳机充满电后再使用。 ●本产品充电时适配电压为5V电源，请勿使用非5V充电电压 为本产品充电，违反此操作导致产品燃烧损坏或其他安全 事故，本公司概不负责! Product Name: Wireless Kids ANC Headphone Function: Bluetooth (call)and AUX AUX function: It can be used without powering on,and will automatically power-off after using AUX cable. Power on status: Auto power-off after disconnected for 5 minutes. Specifications Working Range:around 12m Frequency Response:2.402-2.480GHz Battery Voltage:3.7v/1200mAH Battery Charging Voltage:DC4.2-5.5V Sensitivity:102±3 dB/mW Impedance:32ohm Speaker diameter:40mm Packing list ● A Bluetooth Headphone ● An USB charging data cable ● An AUX-in audio cable ● A manual Button Function 1 . “ 一 ”Volume down:short press Move previous:long press 3.“ ”Power on/Power off,Pause/play Function Description 1.Power on:Long press“ ”for more than 3 seconds,the headphone turn on and enter Bluetooth Mode,Blue LED is on. 2.Power off:Long press“ ”for more than 3 seconds,the LED indicator light is off and the headphone Button Guide 1.Hang on:Short press" "button when being called. 2.Hang up:Short press" "button when calling. 4.Play music:Normally short press" "button to turn on the smart devices automatically to play music. 5.Continue to play music after the call:When there is an incoming call,the music will be automatically suspended. After the call,you need to short press the" "button to continue playing. Bluetooth mode 1.First pairingIt will enter the Bluetooth mode automatically when the"GS"is switched on,then voice prompts,"Power on Pairing",blue LED is on ,and if the last connected device could not be found after 1s,the"GS"will automatically enter the Bluetooth pairing mode,and you willfind that LEDlight flashed between red and blue,at this then search the device named "GS"to get connected without a password,after pairing successfully,voice prompts "Connect ed",the blue LED is on. 2.Subsequent pairing:after powering on,it will automatically 3.Warning voice of maximum volume:"Didi" 4.Power saving mode:headset will automatically power off after pairing continuously for 5 minutes;it will cut off powel supply automatically after using Aux-in cable for power saving. 5.International general Micro USB charging port. AUX-in Mode In any modes,insert the AUX-in line,the headset automatically shut down,and switch to AUX-in function without power consumption. TF card playback mode When powering off,insert TF card,short press the power button about three seconds,the Bluetooth headset automatically enter the TF card play mode. When powering on,insert TF card,Bluetooth headset automatically enter the TF play mode. Press both · + 一 " at the same time to switch between *Note:The maximum support capacity of TF card is 16GB.If using the card more than 16GB,the system maybe can not play music. LED light status Charging The red LED is on,when full charged, the indicator ligh is off. Powering on Blue LED flashes Poweringoff Red LED flashes and finally turn to off Pairing Blue and red LED flashes alternately Connected Blue LED is on Note 1.Please turn off the device to avoid power consumption if no pairing operation taken after bluetooth headset entering into the pairing mode. 2.Please do not make other operations when searching bluetooth in case of procedure error. 3.Please adjust volume appropriately to avoid doing harm to the ears. 4.Please pay attention to choose a good surroundings for bluetooth headset use to avoid causing damage to the headset. 5.Please get bluetooth headset full charged firstly when it has not being used for a long time before. 6.Please only use an adapter with the out put of 5V to charge this product,otherwise,may cause product damage or other satety problems.The company will not be responsible for any combustion damage or other safety incidents caused by the violation of this operation. HIGH PERFORMANCE FOLDABLE MINI BLUETOOTH HEADSET 2.“十”Volume up:short press Move next:long press 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 operation. Any Changes or modifications 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 …

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Rev 1/26/2023 Dongguan Gorsun Electronic Co.Ltd Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2026/7/7 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2ATQ9-M88 Applicant FRN: 0028589463 [Dongguan Gorsun Electronic Co.Ltd] certifies that, as of the date of the filing of the application, [FCC US Agent, LLC] is our designated U.S. agent for service of process for the above referenced FCC ID. [Dongguan Gorsun Electronic Co.Ltd] accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. [FCC US Agent, LLC] accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Applicant Information: Company Name: Dongguan Gorsun Electronic Co.Ltd FRN: 0028589463 Address: No.140 Chashi Road, Tangjiao Village, Chashan Town, Dongguan, China Contact Person: Huiguang Lu Phone: 0769-81372977 Email: [email protected] Sincerely, [Dongguan Gorsun Electronic Co.Ltd] FCC US Agent, LLC [Huiguang Lu] Tim Payne

C5266091_X24_Ed.2 1/1 “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: Dongguan Gorsun Electronic Co.Ltd Grantee code: 2ATQ9 FRN: 0028589463 FCC ID: 2ATQ9-M88 Contact Name: Huiguang Lu Address: No.140 Chashi Road, Tangjiao Village, Chashan Town, Dongguan, China Telephone No: 0769-81372977 Fax No: 0769-81372977 Email: [email protected] i. [Dongguan Gorsun Electronic Co.Ltd] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. The applicant must sign this certification. ii. [Dongguan Gorsun Electronic Co.Ltd] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. [Dongguan Gorsun Electronic Co.Ltd] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] identified on the Covered List as an entity producing “covered” equipment. Date: 2026/7/7 Applicant’s Name: Dongguan Gorsun Electronic Co.Ltd Title: Manager Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

Code 00018768 Ed. Dongguan Gorsun Electronic Co.Ltd 2 Item 2. Technical Requirements for Kaspersky Cybersecurity Software Item 1. The device is able to install software/program installation? ☐Yes, go to Item 2. ☒No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky cybersecurity or anti-virus software. : # General Requirements (For all Devices) Yes / No or N/A Comments 1 Internet connection for activation and updates (For all Operating Systems) N/A Device Company name Grantee code FCC ID FRN Contact name Address Telephone number E-mail Chipset/module information Operating System (if applicable) Storage Capacity (hard drive or other permanent memory storage, if applicable) Dongguan Gorsun Electronic Co.Ltd Wireless Kids ANC Headphone 2ATQ9 2ATQ9-M88 0028589463 Huiguang Lu No.140 Chashi Road, Tangjiao Village, Chashan Town, Dongguan, China 0769-81372977 [email protected] N/A N/A AB5712C 2 # General Requirements (For Windows Devices) Yes / No or N/A Comments 1 Storage: 1500 MB free space on the hard drive N/A 2 Operating System: Microsoft Windows 8, 8.1, 10 & 11 Home / Pro / Enterprise Microsoft Windows 7 Starter / Home Basic & Premium / Professional / Ultimate SP1 or higher N/A 3 Processor: 1 GHz or higher (x86 or x64) N/A 4 Memory (RAM)1 GB (32-bit) or 2 GB (64-bit) N/A 5 Screen Resolution: Minimum resolution of 1024 x 768 N/A # General Requirements (For macOS devices) Yes / No or N/A Comments 1 Operating System macOS® 13 – 14 N/A 2 Memory (RAM)4 GB N/A 3 Storage: 3455 MB free space on the hard drive N/A # General Requirements (For Android Devices) Yes / No or N/A Comments 1 Storage: 150 MB free space N/A 2 Operating System: Android™ 10 – 14 N/A 3 Screen Resolution: Minimum resolution of 320 x 480 N/A # General Requirements (for iOS devices) Yes / No or N/A Comments 1 Storage: 150 MB free space N/A 2 Operating System: iOS® 17 N/A After reviewed the technical requirements, is the device capable of supporting the installation of Kaspersky software? 3 ☐ Yes, go to Item 3. ☒ No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky software Item 3. Connectivity Capabilities: # Physical Interface Purpose Justification 1 1 # Wireless Interface Purpose Justification 1 1 After the review of this items, the device: ☒ Cannot support installation of any cybersecurity or anti-virus software on the covered list. ☐ Potentially can operate with any cybersecurity or anti-virus software on the covered list – additional third- party proof is provided to demonstrate compliance with requirements as of 2.911(d)5(i),(ii) – “Proof of Compliance with Covered List Software Requirements” of this document applies Signature: Name: Huiguang Lu Date: 2026/7/7 1 The justification field is used to justify why the software cannot be received through that interface. Check the annex for more indications.

TCBCALLpágina1 FileFCCID:2ATQ9-M88 PleaseuploadanexhibitthatexplainshowdoestheTCBverifythenewagentinformation: 1-IstheaddressoftheagentavalidphysicalUSmailingaddress(notaUSpostofficebox,notavirtualmailbox,notP.O.Boxes,notavacantlot,notapublicbuilding, etc.) ○Wehavecheckediftheaddressexistsinarealandpotentialbuilding(Googlemaps)+officialUSregister,afterthisverificationandtheevidencebelowwecan guaranteethefollowing: notaUSpostofficebox notavirtualmailbox notP.O.Boxes notavacantlot notapublicbuilding(note) ►WecheckedtheFCCFRNSearchbasedontheinformationprovidedbythegrantee. Ontheofficialregisterfrom:https://opencorporates.com/companies/us_il/LLC_12842678 Ingoogle: TCBCALLpágina2 Bankinformation TCBCALLpágina3 TCBCALLpágina4 TCBCALLpágina5 TCBCALLpágina6 TCBCALLpágina7 TCBCALLpágina8 TCBCALLpágina9 ►CONCLUSIONbyTCB:TheASOPdefinedandprovidedbygranteeisVALIDandconfirmed.Thereforetheexhibit"AttestationStatementsUSagentforservice ofprocess2023-8-3"includedinthefileisok. 2-IstheagentphysicallylocatedatthatvalidUSaddresssuchthattheagentcanbelegallyservedatthataddress? Yes,checkabove 3-Hasthelistedagentclearlyagreedinwritingtoserveastheagentforthegranteeatthataddress? Yes,itisincludedintheexhibit"AttestationStatementsUSagentforserviceofprocess2023-8-3" >

C5266091_X10_Ed.2 1/1 Dongguan Gorsun Electronic Co.Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2026/7/6 Subject: Request for Confidentiality FCC ID: 2ATQ9-M88 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☐ Internal Photos ☐ NOTE 1 ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ______ days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name: Huiguang Lu Title: Manager

C5266091_X8_Ed.1 1/1 Letter of Authorization Dongguan Gorsun Electronic Co.Ltd Company: Dongguan Gorsun Electronic Co.Ltd Address: No.140 Chashi Road, Tangjiao Village, Chashan Town, Dongguan, China Product Name: Wireless Kids ANC Headphone Model Number: M88 FCC Identifier: 2ATQ9-M88 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Huiguang Lu Date: 2026/7/6 Title: Manager Signature of applicant:

Report No.: BCTC2606378687E External Photos Report No.: BCTC2606378687E Report No.: BCTC2606378687E Report No.: BCTC2606378687E Report No.: BCTC2606378687E

Label & Location FCC ID: 2ATQ9-M88

Report No.: BCTC2606378687E Internal Photos Report No.: BCTC2606378687E Antenna Report No.: BCTC2606378687E Report No.: BCTC2606378687E

RF EXPOSURE EVALUATION METHOD FCC ID: 2ATQ9-M88 Applicable standard： In accordance with FCC 47 CFR part 2 (2.1093) this device has been defined as a portable device which 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 devices must be evaluated using the specified in FCC 47 CFR part 2 (2.1093) and ANSI/IEEEC95.1-1992. and had been tested in accordance with the measurement methods and procedures specified in IEEE 1528-2003. Per FCC KDB 447498 D01 v06, the 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances s 50 mm are determined by: SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. 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. BT Modulation Frequency Maximum Conducted Output Power(PK) (MHz) (dBm) 1-DH1 2402 -0.81 2441 0.84 2480 1.25 2-DH1 2402 -0.77 2441 0.86 2480 1.26 3-DH5 2402 -0.78 2441 0.87 2480 1.27 max possible output power (PK, conducted)：1±1dBm 2dBm=1.58mW 2402MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 1.58/5*√2.402=0.490≤3.0 2440MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 1.58/5*√2.440=0.494≤3.0 2480MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 1.58/5*√2.48=0.498≤3.0 Conclusion: 1. [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] * [√f(GHz)] < 3.0. 2. SAR Test Exclusion Thresholds is 3.0 for separation distance 5mm. Therefore, SAR test is not required.

No.：BCTC/KJ-RF-ICT-001 Page 1 of 88 Edition：B.1 TEST REPORT Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC2606378687E Applicant: Dongguan Gorsun Electronic Co.Ltd Product Name: Wireless Kids ANC Headphone Test Model: M88 Tested Date: 2026-06-12 to 2026-06-26 Issued Date: 2026-06-26 Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 2 of 88 Edition：B.1 FCC ID: 2ATQ9-M88 The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Technology Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. Product Name: Wireless Kids ANC Headphone Trademark: gorsun Model/Type Reference: M88 Prepared For: Dongguan Gorsun Electronic Co.Ltd Address: No.140 Chashi Road, Tangjiao Village, Chashan Town, Dongguan, China Manufacturer: Dongguan Gorsun Electronic Co.Ltd Address: No.140 Chashi Road, Tangjiao Village, Chashan Town, Dongguan, China Prepared By: Shenzhen BCTC Technology Co., Ltd. Address: Room 101M, Unit 1, Building1, Pengyuan, No.18, Lilang Road, Shanglilang, Nanwan Subdistrict, Longgang District, Shenzhen, Guangdong, China. Sample Received Date: 2026-06-12 Sample Tested Date: 2026-06-12 to 2026-06-26 Report No.: BCTC2606378687E Test Standards FCC Part15.247 ANSI C63.10-2020+Cor.1-2023 Test Results PASS Remark: This is Bluetooth Classic radio test report. Prepared by : Reviewer by : Approved by: Louis Zeng /Editor Mike Zheng / Supervisor Sewen Guo/Manager Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 3 of 88 Edition：B.1 Table of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information and Test Setup ...................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 9 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List ........................................................................................................ 10 4.5 Test Mode ........................................................................................................... 10 4.6 Table Of Parameters Of Text Software Setting ................................................... 11 5. Test Facility And Test Instrument Used ............................................................... 12 5.1 Test Facility ......................................................................................................... 12 5.2 Test Instrument Used .......................................................................................... 12 6. Conducted Emissions .......................................................................................... 14 6.1 Block Diagram Of Test Setup .............................................................................. 14 6.2 Limit .................................................................................................................... 14 6.3 Test procedure .................................................................................................... 14 6.4 EUT operating Conditions ................................................................................... 14 6.5 Test Result .......................................................................................................... 15 7. Radiated emissions ............................................................................................. 17 7.1 Block Diagram Of Test Setup .............................................................................. 17 7.2 Limit .................................................................................................................... 18 7.3 Test procedure .................................................................................................... 19 7.4 EUT operating Conditions ................................................................................... 20 7.5 Test Result .......................................................................................................... 21 8. Radiated Band Emission Measurement and Restricted Bands of Operation ...... 27 8.1 Block Diagram Of Test Setup .............................................................................. 27 8.2 Limit .................................................................................................................... 27 8.3 Test procedure .................................................................................................... 28 8.4 EUT operating Conditions ................................................................................... 28 8.5 Test Result .......................................................................................................... 29 9. Spurious RF Conducted Emissions ..................................................................... 30 9.1 Block Diagram Of Test Setup .............................................................................. 30 9.2 Limit .................................................................................................................... 30 9.3 Test procedure .................................................................................................... 30 9.4 Test Result .......................................................................................................... 31 10.…

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Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT Horizontal Vertical 2400MHz 2450MHz 2500MHz 2400MHz 2450MHz 2500MHz Center Frequency -1.73dBi-0.84dBi-0.68dBi-6.15dBi-3.70dBi-2.32dBi MAX. Gain -0.68dBi Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Photo & Length (mm) Manufacture: Zhuhai Jieli technology Co Ltd Address: No. 333, Kexing Road, Xiangzhou District, Zhuhai Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.73178-30.0815-8.48713 2450 -0.845801-38.5605-7.88012 2500 -0.685586-24.0318-6.79139 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -6.1530-24.1420-13.0295 2450 -3.7054-26.5836-10.6700 2500 -2.32122-30.4301-9.70536 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 51 of 88 Edition：B.1 Band Edge(Hopping) NVNT 3-DH5 2480MHz Hopping Ref Band Edge(Hopping) NVNT 3-DH5 2480MHz Hopping Emission Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 52 of 88 Edition：B.1 10. 20 dB Bandwidth 10.1 Block Diagram Of Test Setup 10.2 Limit N/A 10.3 Test procedure 1. Set RBW = 30kHz. 2. Set the video bandwidth (VBW) ≥ 3 x RBW. 3. Detector = Peak. 4. Trace mode = max hold. 5. Sweep = auto couple. 6. Allow the trace to stabilize. 7. Measure the maximum width of the emission that is constrained by the frequencies associated with the two outermost amplitude points (upper and lower frequencies) that are attenuated by 6 dB relative to the maximum level measured in the fundamental emission. Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 53 of 88 Edition：B.1 10.4 Test Result Condition Mode Frequency (MHz) -20 dB Bandwidth (MHz) Verdict NVNT 1-DH1 2402 0.967 Pass NVNT 1-DH1 2441 0.948 Pass NVNT 1-DH1 2480 0.964 Pass NVNT 2-DH1 2402 1.310 Pass NVNT 2-DH1 2441 1.200 Pass NVNT 2-DH1 2480 1.184 Pass NVNT 3-DH5 2402 1.279 Pass NVNT 3-DH5 2441 1.188 Pass NVNT 3-DH5 2480 1.248 Pass Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 54 of 88 Edition：B.1 Test Graphs -20dB Bandwidth NVNT 1-DH5 2402MHz -20dB Bandwidth NVNT 1-DH5 2441MHz Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 55 of 88 Edition：B.1 -20dB Bandwidth NVNT 1-DH5 2480MHz -20dB Bandwidth NVNT 2-DH5 2402MHz Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 56 of 88 Edition：B.1 -20dB Bandwidth NVNT 2-DH5 2441MHz -20dB Bandwidth NVNT 2-DH5 2480MHz Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 57 of 88 Edition：B.1 -20dB Bandwidth NVNT 3-DH5 2402MHz -20dB Bandwidth NVNT 3-DH5 2441MHz Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 58 of 88 Edition：B.1 -20dB Bandwidth NVNT 3-DH5 2480MHz Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 59 of 88 Edition：B.1 11. Maximum Peak Output Power 11.1 Block Diagram Of Test Setup 11.2 Limit FCC Part15 (15.247) , Subpart C Section Test Item Limit Frequency Range (MHz) Result 15.247(b)(1) Peak Output Power 0.125 watt or 21dBm 2400-2483.5 PASS 11.3 Test procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set the spectrum analyzer: RBW = 2MHz. VBW = 6MHz. Sweep = auto; Detector Function = Peak. 3. Keep the EUT in transmitting at lowest, medium and highest channel individually. Record the max value. 11.4 Test Result Condition Mode Frequency (MHz) Conducted Power (dBm) Limit (dBm) Verdict NVNT 1-DH1 2402 -0.81 21 Pass NVNT 1-DH1 2441 0.84 21 Pass NVNT 1-DH1 2480 1.25 21 Pass NVNT 2-DH1 2402 -0.77 21 Pass NVNT 2-DH1 2441 0.86 21 Pass NVNT 2-DH1 2480 1.26 21 Pass NVNT 3-DH5 2402 -0.78 21 Pass NVNT 3-DH5 2441 0.87 21 Pass NVNT 3-DH5 2480 1.27 21 Pass Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 60 of 88 Edition：B.1 Test Graphs Power NVNT 1-DH5 2402MHz Power NVNT 1-DH5 2441MHz Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 61 of 88 Edition：B.1 Power NVNT 1-DH5 2480MHz Power NVNT 2-DH5 2402MHz Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 62 of 88 Edition：B.1 Power NVNT 2-DH5 2441MHz Power NVNT 2-DH5 2480MHz Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-001 Page 63 of 88 Edition：B.1 Power NVNT 3-DH5 2402MHz Power NVNT 3-DH5 2441MHz Report No.:BCTC2606378687E No.：BCTC/KJ-RF-ICT-0…

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