2BXQW-V01V01 Microphone

V01 ．产品概述 ．操作说明 ©发射器未连接：配对指示灯绿灯闪烁，未 4拍照／录像 ．接收器 ·佩戴方式 ．充电仓 ．产品参数 ．注意事项 连接3分钟后自动熄灭． ＠拍照／录像：双击按键即可开启抇照／录像。 迷你无线麦克风 �、 功能状态模式 ＠发射器已连接：配对指示灯绿灯常亮。 手机在拍照或者录像界面有效，其他界面 接收器功能状态模式 ©背夹式佩戴 发射器厅E电仓充满电， 型号 vo, 1. 产品内含强磁，为避免产生磁化影P向，请远离磁卡、IC卡、 l 』 . 器 ， 国 则是音量加功能。 （每次双击连接绿 灯 快闪2次） 电池仓所有灯熄灭 无线传输 2.4GHz 植入性医疗设备（如心脏起搏器）、硬盘、RAM芯片等易受干 喊 匾 未连接模式 叭 ．背夹设计，佩戴不受限． 扰设备。 冞杆预宇与冞祥深度48KHz 24bit 3. 降 嗓功能按键（单 击按键栖环三种 录音模式） 接收器插入手机后， TX1[TX2双绿 灯 2严禁使产品接帕任何液体，切勿将产品浸入水中或将其弄 i · 双击 即 开一 同时闪烁 申-丽，数字电已显示屏 湿。切勿在雨中或者湖温的环境中使用产品。产品内部接灶 主要材质·ABS 水后可能发生腐蚀反应，从而引发电池自燃甚至爆炸。 口弱 降 噪妇 ． 连接模式 重量 72g 3若产品发生起火，请立即使用水、水雾、沙、灭火毯、干粉、 @ 1 鲁 �� 连接使用时，单击按键进入弱降噪模式， 羊麦连接TX1显示绿灯常亮，TX2显 产品尺寸·60.6*53*53 mm 二氧化碳灭火器灭火。请根挹实际情况按以上推荐顺序选 绿灯常克．（开机默认摸式） 左边发射器充电时， 示绿灯闪烁15秒后熄灭 LS指示灯克． 择灭火方式。 ---§--- 双麦连接TX1[TX凶豆示绿灯同时常亮 ＠磁吸式佩戴 传1 00米向视距离） 4请在温度为10·c至45'C之间的环境中使用产品，产品的 已 葆 强 降 噪 模式 麦克风360'全指向 充电环境温度为s·c至4s•c ... 接收器） 5. 充电指示灯 （备注 出仓／入仓／未连接状态下，TX1/TX2指示灯熄灭） ii . . . 喙 晴 定 在衣 卢 电泄畦 65mAh(无讽 ） 5禁止以任何方式拆解产品。若拆解过程中剌破电池将会导 尪连接使用时，再次单击按键进入强降谟漠 ©入仓自动充电并关机，出仓自动开机，充 面料后，发射器背夹后 800mAh (电池仓） 致电池内部电解液泄露、甚至引发起火、爆炸。 式，紫灯常亮． I 即 " a, 压 "' , , . ． 卫 ｀ 片 ＠电池仓透明盖 ＠功能指示灯 ＿ 电过程中，指示灯红灯常亮；充满电后，所 ．边充边用 ＠充电时，电fi1散罪灯亮 6禁止机械撞击、碌压或抛掷产品。请勿在产品上放冒重物。 并显示当前电孟值． 7请勿将产品放否在加热设备、烹性设备、高压容器等（如微 ＠配对指示灯 (I) Type - C 接口 有灯灭． ©支持边充边播，电量无忧． 1. 发射器 按键 ．旋钮开盖 宜 C E: 忙 R o H S !) 波炉、电池炉、电烤箱、电嗳器、禹压锅、热水器、燃气灶 ＠开关机/ M 键 ＠电君数显 ＠开机：长按3秒开机J出仓开机，绿灯闪烁． ii • ""'楼式 ＠低电量时，指示灯红灯3秒闪烁1次。 义J) 气 1 等）的附件或其内部，以防止电池过热发生爆炸。 ＠磁吸片 ＠电池仓 ＠关机·长按3秒关机／入仓关机，指示灯灭． 灯 连接使用时，再 一 次单击按键进入原声漠 -- _ Made in China 使用前请洋细谤读木手册 I @固定背夹 式，篮灯常充． r、 尸 ·往逆时针旋拧开盖， 8. 禁止将产品放在靠近热源（火炉或加热器等）的地方以及将 励充电口 2. 配 对／连接状态 ＿、、＿＿刁－ 往顺时针旋拧扣紧． 产品置于热天的汽车内。切勿将产品存储在超过60飞的环 境下。 Please read this manual carefully before use •Product Overview ＠ ＠ ＠ Battery compartment transparent co ve r ®F unction indicato汕 ght @ Pairing indicator light (D Type-C interface @ Power on&off / M key®Power lfNfJI displey ® M agn的csheet®Battery compartment ®Fixed back clip (@ Charging port •Operation Instructions Function Status Mode g .gthe phg亟妇 the IDe g } 晌 i 它 ► 订5 一 g 三 i 』 lJ ---8--- "'(Rece,vec) 1.Transmitter Buttons CDP呻rOn: Press and hold for 3 seconds to power on, or power on when taken out of the charging case; the green light flashes. ©氏哼Off'Pressand had for 3 seoonds to poweroff,or pc,Ml(off when plared back ,nto the charging case, the indicator light turns off. 2.Pairing / Connection Status (])Transmitter Not Connected: The green pairing indicator light flashes. It will automatically tum off after 3 minutes of disconnection. @Transmitter Connected: The green pairing indicator light stays solid on. 3. Noise Reduction Button (Smgle心hckto cycle thro,gh thn,e ffiCC奾ogmodes) Weak Noise Reduction Mode (Green Light) When connected, s,ngle-chck the button to activate weak noise reduction, green light stays solid on (Default startup mode) Strong Noise Reduction Mode (Purple Light) When connected, click again to enter strong nooe reduction mode, purple light stays sol� on Original Sound Mode (Blue Light) When connected, ciick once more to enter 0廿ginalsound mode without noise reduction, blue light stays solid on 4. Taking photos & recording videos Q) Taking photos & recording videos: Double-click the bu廿on to start taking photos or recording v1deos.Th1S funct,on only works on the phone's cam ere intertace. Other interfaces, this button controls volume increase. (Each double-click will make the green connection indicalo『flashtwice quickly.) 5.Charging Indicator Light (l) The姐1,mittsr凶IIpower off and start charg闻autornatical� 仙enplaced into lhe case; It powers on automatically when taken out. During charg闻，th e red indicator l�hl stays solid on; all lights turn off ooceful�ch叩ed. @Whenballerypo, 妇S加，lhered indicall:r light flashes ooo, every 3 seconds. •Receiver Receiver Function Status Modes 二g uKa p m e . • ash 训 1 e mo a k d h g o lo n ged g M d te : c 2 晌 g e 随 g g n n nd 。 a c 2 un 庙 Txj ． 喊匮三芒芒：：三＝ 15芘叩s仇enbJms吼 Dual-lransm归 囡远函slay啪忒ilyl卯at妇泊伲lme. (Note When归Ira心咄妇r,s比aced咋aorta厄n叩tof仇e寸a屯,ngcase, 仇ell<1and1X2,nd立0飞咖lgoo,t叩deron山l吓,ledstaws.) •Wearing Methods (D Back clip wearing @ Magnetic Wearing •Wilhclipd函gn,you can wear It freely without re的iction er re IUCU onenon m se ch thrt s n to Pat g pa c .Icfabetltratch 三 i t r ． n e ag th m o hesortheackilhcro t e w . ml • g 』 i dip the I r 、 •Charging Case Whea咖a屯lnglhe left traasmltte,, the L百ndca盯lghts"P· 回 n尸 ＿、-刁一 f RI心lea回llgh饬 up. I @o,,,g中a屯,ag,the powe, d1g1tal d,s p lay tumsona心shONSthe中哼rnpowe,I吨 •Twist the knob to open the lid • Tw,stooun比心也�w,setoopen lhel1d T,.,;st心心心归;to fas\en tightly. •Specifications Model: V01 Wireless Transmission: 2.4GHz Sampling Rate & Bit Depth: 48KHz 24bit Power Indicator: Digital Power Display Main Ma妇rial:ABS Net Weight: 72g Product Dimensions: 60.6*53'53mm Transmission Distance: 100 meters (Vi如ngdistance) Microphone: 360 ° full-<Jirectional Battery Capacity: 65mAh (Microphone) 800mAh (Charging box) 宜 ( E: Fe R o H S 凸 _ Made in China •Important Notes l.This product a, 北ainsstrong,,屯几±.Top吧忒rTldYI咄也心l ill邑「巳哗岫i亚yfromII呼iica,rdslC竺i叩la函 media,ld€'1位(SU中as严l扯军） ， hardd亟RAMcnpsand 西<L�_tjJ仙I.equipment. 2Don忒呐运昨product1D any liquid. N亟111111归ocO「怅t tl.Donctuse扣nrain or il.Jmil wndiliuns W宝intrusionmay rnusei啦mala,啦rn1leaclngto扫如ryspo心ll妇usoombustion or如叫,I心日L 3.ln case of fire, extingush小e妇芦呻如waterm吐sand. fire bl.-, 虹drypo志ora,rbondi呻fireexti屯此归闷切 妇l已UIIUI巳吐s.JsequB正dLLUllli心1D加aactual situation 4.0perating归l\kldlure旧nge-1忨~45-C扣rging抑叩 妇Til)E吼u吧5七~45七 5.Do not di立志Ill比咋prociJctPUncturing昨扫如ryduring d....,..,u,, 动Icause吱吐吵leakage.wh中may吧怕nfi吧 ， 叫伈itn 6Al<lid mechanical impact extrusion or th心�ng.Do nct place 飞巧objects on妇product 7.Donot志怍producton or� 吐血ng叩妇止心戏i飞 equipn如ard吵严笠爬归运(miOONiNO""""'坐o 压甜式m蜘中江des,water heabers, gas汝压泛的；）的p吧芯t 咋扫啦ryfrom=I己�...心呐北劝屯· 妇归p血颈如归sou啤suchas码a心嘘＄ Do not妇,di心deaa,『U心er切tsunight91: 顽扣缸平血'"' must note-re巳l邵 V01 Microphone 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 interfere…

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TCB CALL página 1 File FCC ID: 2BXQW-V01 Please upload an exhibit that explains how does the TCB verify the new agent information: 1- Is the address of the agent a valid physical US mailing address (not a US post office box, not a virtual mailbox, not P.O. Boxes, not a vacant lot, not a public building, etc.) ○ We have checked if the address exists in a real and potential building (Google maps) + official US register, after this verification and the evidence below we can guarantee the following: not a US post office box not a virtual mailbox not P.O. Boxes not a vacant lot not a public building(note) ► We checked the FCC FRN Search based on the information provided by the grantee. On the official register from : Search | California Secretary of State TCB CALL página 2 TCB CALL página 3 TCB CALL página 4 TCB CALL página 5 TCB CALL página 6 TCB CALL página 7 TCB CALL página 8 ► CONCLUSION by TCB: The ASOP defined and provided by grantee is VALID and confirmed. Therefore the exhibit "C5266091_X23_Ed1_US_Agent_Letter" included in the file is ok. 2- Is the agent physically located at that valid US address such that the agent can be legally served at that address? Yes , check above 3- Has the listed agent clearly agreed in writing to serve as the agent for the grantee at that address? Yes, it is included in the exhibit "C5266091_X23_Ed1_US_Agent_Letter" >

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: Herland International Trading Inc FRN: 0036324101 Contact Name: Jianfeng Gao Address: 1370 Valley Vista Dr Ste 200 Diamond Bar California 91765-3921 Telephone No: 001-909-772-1888 Email: [email protected] Applicant: Company name: Shenzhen Dingshengzhilian Technology Co., Ltd. Product Description: V01 Microphone Grantee code: 2BXQW FCC ID: 2BXQW-V01 FRN: 0038793824 Contact Name: Jack bu Address: 4B405, Building 4, Xiawei Industrial Zone, No. 7 Ganli 6th Road, Jihua Street, Longgang District, shenzhen City Telephone No: 18906679427 Email: [email protected] [Shenzhen Dingshengzhilian Technology Co., Ltd.] certifies that, as of the date of this filing of the application with the TCB, [Herland International Trading Inc] is our designated US agent for service of process for the above referenced FCC ID. [Shenzhen Dingshengzhilian Technology 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 equipment. [Herland International Trading Inc] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2026/08/19 Applicant’s Name: Jack bu US Agent’s Name: Jianfeng Gao Title: Manager Title: Manager Signature Signature

Attestation Statement. Old Code: C5266091 24 New Code: 00015544 Ed.3 Change reason: FRN is added to the Applicant information section. 1/1 GuangzhouKemuleGuojiMaoyiYouxianGongsi 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: Shenzhen Dingshengzhilian Technology Co., Ltd. Grantee code: 2BXQW FCC ID: 2BXQW-V01 FRN: 0038793824 Contact Name: Jack bu Address: 4B405, Building 4, Xiawei Industrial Zone, No. 7 Ganli 6th Road, Jihua Street, Longgang District, shenzhen City Telephone No: 18906679427 Fax No: 18906679427 Email: [email protected] i. [Shenzhen Dingshengzhilian Technology 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. [Shenzhen Dingshengzhilian Technology 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. [Shenzhen Dingshengzhilian 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 as an entity producing “covered” equipment . Date: 2026/08/19 Applicant’s Name: Jack bu Title: Manager Signature: 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

Shenzhen Dingshengzhilian Technology Co., Ltd. Code 00018768 Ed. 1 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. Item 2. Technical Requirements for Kaspersky Cybersecurity 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 V01 Microphone Company name Shenzhen Dingshengzhilian Technology Co., Ltd. Grantee code 2BXQW FCC ID 2BXQW-V01 FRN 0038793824 Contact name Jack bu Address 4B405, Building 4, Xiawei Industrial Zone, No. 7 Ganli 6th Road, Jihua Street, Longgang District, shenzhen City Telephone number 18906679427 E-mail [email protected] Chipset/module information AD6976D4 Operating System (if applicable) N/A Storage Capacity (hard drive or other permanent memory storage, if applicable) N/A 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 # General Requirements (For Linux system) Yes / No or N/A Comments 3 1 Hard drive: 1 GB of free space N/A 2 CPU: Intel Pentium 1 GHz or higher N/A 3 RAM: 1 GB N/A 4 Minimum software requirements: AlmaLinux OS 8 or later; AlterOS 7.5 or later; Astra Linux Common Edition 2.12 or later; CentOS 6.7 or later; Debian GNU/Linux 10.0 or later; EulerOS 2.0 or later; Oracle Linux 7.3 or later ; Red Hat Enterprise Linux 6.7 or later ; Rocky Linux 8.5 or later ; SUSE Linux Enterprise Server 12.5 or later; Ubuntu 12.04 or later ; Uncom OS Home / Business / Education / Enterprise 2.2 or later; ALT Linux Workstaton / Workstation K / Server / Education 8 or later; ROSA Linux Workstation / Server 12 or later ; RED OS 7.3 and later ; N/A After reviewed the technical requirements, is the device capable of supporting the installation of Kaspersky software? ☐ 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: 4 # 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: Jack bu Date:2026-08-19 1 The justification field is used to justify why the software cannot be received through that interface. Check the annex for more indications.

Shenzhen Dingshengzhilian Technology Co., Ltd. FCC ID: 2BXQW-V01 Product Similarity Declaration Applicant: Shenzhen Dingshengzhilian Technology Co., Ltd. Address: 4B405, Building 4, Xiawei Industrial Zone, No. 7 Ganli 6th Road, Jihua Street, Longgang District, shenzhen City Manufacturer: Shenzhen Dingshengzhilian Technology Co., Ltd. Address: 4B405, Building 4, Xiawei Industrial Zone, No. 7 Ganli 6th Road, Jihua Street, Longgang District, shenzhen City Product Name: V01 Microphone Trade Mark: N/A Model Number: V01, V02, V03, V05, V06, V07, V08 We (Shenzhen Dingshengzhilian Technology Co., Ltd. ) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), All models are the same as the samples except for the model name and appearance color. <Signature>: Name: Jack Bu Title: Manager Company: Shenzhen Dingshengzhilian Technology Co., Ltd.

C5266091_X10_Ed.2 1/1 Shenzhen Dingshengzhilian Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2026.08.19 Subject: Request for Confidentiality FCC ID: 2BXQW-V01 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. Sincerely, C5266091_X10_Ed.2 1/1 Signature: Name: Jack bu Title: Manager 2026.08. 19

C5266091_X8_Ed.1 1/1 Letter of Authorization Shenzhen Dingshengzhilian Technology Co., Ltd. Company: Shenzhen Dingshengzhilian Technology Co., Ltd. Address: 4B405, Building 4, Xiawei Industrial Zone, No. 7 Ganli 6th Road, Jihua Street, Longgang District, shenzhen City Product Name: V01 Microphone Model Number: V01, V02, V03, V05, V06, V07, V08 FCC Identifier: 2BXQW-V01 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: Jack bu Date: 2026.08.19 Title: Manager Signature of applicant:

Shenzhen DL Testing Technology Co., Ltd. EUT PHOTO(External Photos) Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. ※※※※※ END OF REPORT ※※※※※

Size:12*8mm M/N: V01 FCC ID: 2BXQW-V01 Label location

Shenzhen DL Testing Technology Co., Ltd. EUT PHOTO(Internal Photos) ANT Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. ※※※※※ END OF REPORT ※※※※※

FCC ID: 2BXQW-V01 RF Exposure Evaluation According to KDB 447498 D01 V06 and part 2.1093，Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 EIRP=E Meas +20log(d Meas )-104.7 EIRP is the equivalent isotropically radiated power, in dBm E Meas is the field strength of the emission at the measurement distance, in dBμV/m d Meas is the measurement distance, in m Here, Field strength (dBuV/m) EIRP (dBm) Max tune-up (mW) Frequency (MHz) Min. distance(mm) Calc. thresholds limit 59.81 -35.3 0.0003 2480 5 0.00009 3.0 So a SAR test is not required

Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260722021R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 25 FCC Part 15C Test Report FCC ID: 2BXQW-V01 Applicant: Shenzhen Dingshengzhilian Technology Co., Ltd. Address: 4B405, Building 4, Xiawei Industrial Zone, No. 7 Ganli 6th Road, Jihua Street, Longgang District, shenzhen City Manufacturer: Shenzhen Dingshengzhilian Technology Co., Ltd. Address: 4B405, Building 4, Xiawei Industrial Zone, No. 7 Ganli 6th Road, Jihua Street, Longgang District, shenzhen City Product Name: V01 Microphone Trade Mark: N/A Model Number: V01, V02, V03, V05, V06, V07, V08 Date of Receipt: Jul. 22, 2026 Test Date: Jul. 22, 2026 - Aug. 07, 2026 Date of Report: Aug. 07, 2026 Prepared By: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Comprehensive Building, Tongzhou Electronics Longgang Factory Area, No.1 Baolong Fifth Road, Baolong Community, Baolong Street, Longgang District, Shenzhen, China Applicable Standards: FCC PART 15 C 15.249 ANSI C63.10-2020 + Cor. 1-2023+C63.10a-2024 + Errata to C63.10a-2024 Test Result: Pass Report Number: DLE-260722021R Prepared (Test Engineer): Alisa Song Reviewer (Supervisor): Jack Bu Approved (Manager): Jade Yang This test report is based on a single evaluation of one sample of above mentioned products. It is not permitted to be duplicated in extracts without written approval of Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260722021R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 25 Table of Contents Page 1 . SUMMARY OF TEST RESULTS 4 1.1 MEASUREMENT UNCERTAINTY 4 2 . GENERAL INFORMATION 5 2.1 GENERAL DESCRIPTION OF EUT 5 2.2 DESCRIPTION OF TEST MODES 6 2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 6 2.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 7 2.5 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 7 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 8 3 . EMC EMISSION TEST 9 3.1 CONDUCTED EMISSION MEASUREMENT 9 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 9 3.1.2 TEST PROCEDURE 9 3.1.3 DEVIATION FROM TEST STANDARD 9 3.1.4 TEST SETUP 10 3.1.5 EUT OPERATING CONDITIONS 10 3.1.6 TEST RESULTS 11 3.2 RADIATED EMISSION MEASUREMENT 13 3.2.1 RADIATED EMISSION LIMITS 13 3.2.2 TEST PROCEDURE 14 3.2.3 DEVIATION FROM TEST STANDARD 14 3.2.4 TEST SETUP 15 3.2.5 EUT OPERATING CONDITIONS 16 3.2.6 TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 17 3.2.7 TEST RESULTS (BETWEEN 30MHZ – 1GHZ) 18 3.2.8 TEST RESULTS (1GHZ~25GHZ) 20 3.3 RADIATED BAND EMISSION MEASUREMENT 21 3.3.1 TEST REQUIREMENT: 21 3.3.2 TEST PROCEDURE 21 3.3.3 DEVIATION FROM TEST STANDARD 21 3.3.4 TEST SETUP 22 3.3.5 EUT OPERATING CONDITIONS 22 4 . BANDWIDTH TEST 24 4.1 APPLIED PROCEDURES / LIMIT 24 4.1.1 TEST PROCEDURE 24 4.1.2 DEVIATION FROM STANDARD 24 4.1.3 TEST SETUP 24 4.1.4 EUT OPERATION CONDITIONS 24 Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260722021R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 3 of 25 Table of Contents Page 4.1.5 TEST RESULTS 24 5 . ANTENNA REQUIREMENT 25 5.1 STANDARD REQUIREMENT 25 5.2 EUT ANTENNA 25 6 . TEST SEUUP PHOTO 25 7 . EUT PHOTO 25 Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260722021R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 4 of 25 1.. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.249) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS 15.205(a), 15.209(a) 15.249(a), 15.249(c) Fundamental &Radiated Spurious Emission Measurement PASS 15.249(d) Band Edge Emission PASS 15.215(c) 20dB Bandwidth PASS 15.203 Antenna Requirement PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report Test lab: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Comprehensive Building, Tongzhou Electronics Longgang Factory Area, No.1 Baolong Fifth Road, Baolong Community, Baolong Street, Longgang District, Shenzhen, China FCC Test Firm Registration Number: 854456 Designation Number: CN1307 IC Registered No.: 27485 CAB ID.: CN0118 1.1. 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 Conducted Emission Test ±2.56dB 2 RF power,conducted ±0.42dB 3 Spurious emissions,conducted ±2.76dB 4 All emissions,radiated(<1G) ±3.65dB 5 All emissions,radiated(>1G) ±4.89dB 6 Temperature ±0.5°C 7 Humidity ±2% 8 20dB Bandwidth ±0.2% Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260722021R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 5 of 25 2.. GENERAL INFORMATION 2.1. GENERAL DESCRIPTION OF EUT Product Name: V01 Microphone Trade Mark: N/A Model Number: V01, V02, V03, V05, V06, V07, V08 Test Model: V01 Model difference: All models are same as the samples except model name and appearance color, they have the same structure and circuit. Operation Frequency: 2402~2480MHz Channel numbers: 79 Channels Channel separation: 1MHz Data Rate: 1Mbps Modulation technology: GFSK Antenna Type: Internal Antenna Antenna gain: -0.25dBi Power Supply: Battery: DC 3.7V Note: 1.For a more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. 2.The EUT’s all information provided by client. 2. Channel List Channel Frequency (MHz) Channel Frequency (MHz) Channel Frequency (MHz) 00 2402 27 2429 54 2456 01 2403 28 2430 55 2457 02 2404 29 2431 56 2458 ~ ~ ~ ~ ~ ~ 08 2410 35 2437 62 2464 09 2411 36 2438 63 2465 10 2412 37 2439 64 2466 11 2413 38 2441 65 2467 12 2414 39 2440 66 2468 13 2415 40 2442 67 2469 ~ ~ ~ ~ ~ ~ 14 2416 41 2443 68 2470 22 2424 49 2451 76 2478 23 2425 50 2452 77 2479 24 2426 51 2453 78 2480 25 2427 52 2454 26 2428 53 2455 Shenzhen DL Testing Technology Co.…

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客户名称 Customer Name 客户项 目名Customer Project Name N9291 项目名 Project Name N9291 客户编码 Customer P/N 料号 P/N HLX-N9291-TX-V1 频段 Band 2400-2 5 0 0MHz 版本号 Vers ion 设 计 人 信 息 / Designer Information 射频工程师 RF Eng ineer 张劲松 电子工程师 EE Eng ineer 结构工程师 ME Eng ineer 合 立 讯 审 批 / Helixun Approval客 户 批 准 / Customer Approval 制作 Prepared By 审核 Checked By 批准 Approva l By 审核 Checked By 批准 Approva l By 签章 Signature 张劲松 朱文俊 日期 Date 20246-8-18 2026-8-18 修 订履历/Change Log 版本 Vers ion 修订内容 Change Descr ipt ion 责任人 Person in Charge 核准 Approva l By 日期 Date 承认书 SPECIFICATIONFOR APPROVAL Longxin Microelectronics (Shenzhen) Co., Ltd. Address: 301, 3rd Floor, Guest Elevator, 1st Floor, Cloud Valley, Building 2, Junfeng Business Building, Fuhai Street, Bao'an District, Shenzhen City 目录/Catalogue 序号 No. 项目 Item 页码 PageNo. 1 图纸或实物图片 Drawing orProductImage 3 2 尺寸测量报告 Dimensions TestReport 4 3 射频性能测试报告 RF Performance TestReport 5-10 4 可靠性测试报告 Reliability TestReport1 11 5 包装文件 Package Document 12 6 环保要求 nvironmental Protection Requirements 13 7 安装事宜或其它 InstallWizardor Other 13 朗芯微电子（深圳）有限公司 地址：深圳市宝安区福海街道骏丰商务大厦云谷A座大堂1号客梯3楼301 朗芯微电子（深圳）有限公司 产品图纸或实物图片 Drawing orProductImage 地址：深圳市宝安区福海街道骏丰商务大厦云谷A座大堂1号客梯3楼301 朗芯微电子（深圳）有限公司 样品尺寸测量报告 SampleDimensionsTestReport 地址：深圳市宝安区福海街道骏丰商务大厦云谷A座大堂1号客梯3楼301 客户名称 CustomerName 深圳市朗芯微电 子有限公司 客户料号 CustomerP/N 合立讯料号 HelixunP/N HLX-N9291-TX-V1 测试日期 TestDate 2026-08-18 样品数量 SampleQty. 3 测试人 Inspector 卓子骥 尺寸编号 DimensionNo. 标准 Standard 样品1 Sample1 样品2 Sample2 样品3 Sample3 Pass/NG ①长度 12.50±0.2mm 12.50mm 12.55mm12.50mm Pass ②宽度 7.00±0.2mm 7.00mm7.05mm7.00mm Pass ③厚度 0.2±0.05mm 0.20mm0.22mm0.21mm Pass ④ ⑤ ⑥ ⑦ 最终结论 Conclusion PASS 测试人&日期 Inspector &Date 张劲松2026-08-18 批准&日期 Approval&Date 客户名称 CustomerName 项目名称 ProjectName N9291 料号 P/N HLX-N9291-TX-V1 频段 Band 2400-2500MHz 测试日期 TestDate 2026-08-18 测试人 Inspector 张劲松 天线测试设备简介 AntennaTestEquipmentIntroduction 测试天线输入特性使用AgilentE5071CandAgilent5071B矢量网络分析仪；辐射特性利用 ETS三维近场暗室进行测试，并分别使用CMW500和Agilent5071C进行了分析。暗房的测试坐标如 下: TestofantennainputcharacteristicsusingAgilentE5071CandAgilent5071Bvectornetworkanalyzer; Theradiationpatternof theantennaare testedusing theETSstar lab3DnearfieldAnechoicChamber, andtheinstrumentisusedtoagilent8960E5515andAgilentE4438C.Thetestcoordinatesofthedarkroom areasfollows : 朗芯微电子（深圳）有限公司 射频性能测量报告 RFPerformanceTestReport 地址：深圳市宝安区福海街道骏丰商务大厦云谷A座大堂1号客梯3楼301 地址：深圳市宝安区福海街道骏丰商务大厦云谷A座大堂1号客梯3楼301 TestSystem 朗芯微电子（深圳）有限公司 地址：深圳市宝安区福海街道骏丰商务大厦云谷A座大堂1号客梯3楼301 朗芯微电子（深圳）有限公司 1.2P 1.8NH 匹配图 地址：深圳市宝安区福海街道骏丰商务大厦云谷A座大堂1号客梯3楼301…

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