2BUMS-SMB16Bone Conduction Sleeping Speaker

开关机键 配件清单 1. 白噪音蓝牙睡眠音箱 2.Type-C充电线 3.产品说明书 1. 长按3秒开机，长按3秒关机， 2. 单击播放/暂停。 · 产品名称：蓝牙骨传导白噪音枕下睡眠音箱 · 产品型号：SMB-16 · 输入电流：5V/1A · 工作电压：3.7/4.2V · 电池容量：300mAh · 蓝牙版本：5.4 · 充电时间：约2小时 · 播放时长：70%的电量5-8小时 · 蓝牙距离：10米 · 充电接口：Type-C · 产品重量：53g · 产品尺寸：16*3.6*1.2cm 故障及排除 无法开机 确定蓝牙音响是否充满电量，同时开关键是否长按3秒以 上。 无法蓝牙连接 蓝牙音响指示灯是否处于红蓝交替闪阶段，如果指示灯熄 灭，表示产品与其他设备已经连接，需要断开当前连接设 备。 蓝牙天线距离较短 确定前端设备如手机是否蓝牙4.0以上版本，较早版本可能 造成蓝牙天线距离较短。 产品参数 ① ② ③ 35首白噪音名称 林峒清声 子宫声 心跳声 Si声 嗯声 嘘声 湿步雨巷声 野外簧火声 轻音伴眠声 骨传导蓝牙音乐盒 盛谢您购买本产品! 为了正确使用本产品，使用前请仔细阅读说明书。 使 用 手 册 产品示意图 蓝牙连接 定时功能 TF卡单曲 循环播放 白噪音播放 TF卡播放 音量显示 电量显示 音量减号键 音量加号键 模式切换键 开关机键 骨传导蓝牙音乐盒 盛谢您购买本产品! 为了正确使用本产品，使用前请仔细阅读说明书。 使 用 手 册 使用说明 蓝牙连接 正常开机产品后单击M键，进入蓝牙模式，产品有语音提示蓝牙模式， 屏幕闪烁红蓝灯此时为待连接状态，手机蓝牙设置里可搜索SMB-16, 连接成功后语音提示“连接成功”，按键停止闪烁。 “M ” 键 单击 蓝牙/白噪音/TF卡 转换。 上一曲/下一曲 “+”长按2秒 下一曲 单击加音量； “-”长按2秒 上一曲 单击减音量。 重复单曲 TF卡模式 双击“+”重复单曲。 定时功能 双击开关机键：定时1小时，取消定时双击开关机键。 充电 插入随机配送的Type-C充电线及任意5V/2A手机充电头即可充电。 充电过程中红色指示灯常亮，充满电后指示灯变为绿色 火车行驶声 水咕噜气泡声 海边舒息声 老式怀旧声 塑料袋声 风扇转动声 吹风机声 翻书声 就餐声 风语林间声 泉水叮咚 雨声 风吹树叶声 风声 溪流声 瀑布声 蝉鸣声 虫蛙声 海浪声 鸟叫声 风机声 篝火声 风机声 流水声 舒适音乐 鸟叫溪水声 TF卡卡槽 Type-C充电口 Power On/Off Button Accessories List 1. White Noise Bluetooth Sleep Speaker 2.Type-C Charging Cable 3.Product Manual 1. Press and hold for 3 seconds to turn on; press and hold for 3 seconds to turn off. 2.Short press to play/pause. ① ② ③ Bone Conduction Sleeping Speaker Thank you for purchasing this product! To use this product correctly, please read the manual carefully before use. Product Manual Product Illustration Battery Level Indicator 骨传导蓝牙音乐盒 盛谢您购买本产品! 为了正确使用本产品，使用前请仔细阅读说明书。 使 用 手 册 Bluetooth Connection After turning on the device normally, short-press the M button to enter Bluetooth mode. The device will give a voice prompt indicating Bluetooth mode is activated, and the indicator light on the screen will flash red and blue, meaning it is in a discoverable state.Search for the device name SMB-16 in your phone’s Bluetooth settings. Once the connection is successful, a voice prompt will say “Connected successfully”, and the indicator light will stop flashing. M button Previous Track / Next Track For the "+" button:Long-press for 2 seconds to skip to the next track; Short-press to increase the volume. For the "-" button:Long-press for 2 seconds to skip to the previous track; Short-press to decrease the volume. Single-Track Repeat In TF card mode, double-press the "+" button to enable single-track repeat. Timer Function Double-press the Power On/Off Button to set a 1-hour timer. Double-press the button again to cancel the timer. Charging Plug in the included Type-C charging cable and any 5V/2A phone charger to charge the device. The red indicator light stays on during charging, and turns green when the battery is fully charged. Type-C Charging Port TF Card Single-Track Loop Playback TF Card Playback Timer Function TF Card Slot Volume Level Indicator White Noise Playback Bluetooth Connection Power On/Off Button Mode Switch Button Volume Up Button Volume Down Button Short-press to switch between Bluetooth/white noise/TF card modes. Product Name: Bone Conduction Sleeping Speaker Product Model: SMB-16 Input Current: 5V/1A Working Voltage: 3.7/4.2V Battery Capacity: 300mAh Bluetooth Version: 5.4 Charging Time: Approximately 2 hours Playback Duration: 5–8 hours at 70% battery level Bluetooth Range: 10 meters Charging Port: Type-C Product Weight: 53g Product Dimensions: 16×3.6×1.2cm Product Specifications Clear Sound of Mountain Cave in Forest Uterine Sound Heartbeat Sound Hissing Sound Hum Sound Hush Sound Sound of Footsteps on Wet Alley in Rain Sound of Wild Bonfire Dining Ambience Sound Wind Whispering Through Woods Sound Gurgling Spring Water Sound Rainfall Sound Wind Rustling Leaves Sound Wind Sound Stream Flowing Sound Waterfall Sound Cicada Chirping Sound Gentle Sound for Sleep Train Running Sound Gurgling Water & Bubbling Sound Soothing Seaside Sound Vintage Nostalgic Sound Plastic Bag Rustling Sound Fan Rotating Sound Hair Dryer Sound Page-Turning Sound Insects and Frogs Chirping Sound Sea Wave Sound Bird Chirping Sound Fan Sound Bonfire Sound Fan Sound Flowing Water Sound Comfortable Music Bird Chirping and Stream Sound 36 White Noise Tracks Operating Instructions Faults and Troubleshooting Cannot Power On Check if the Bluetooth speaker is fully charged, and ensure that the power button is pressed and held for more than 3 seconds. Cannot Connect via Bluetooth Check if the indicator light of the Bluetooth speaker is flashing alternately in red and blue. If the indicator light is off, it means the product has been connected to another device, and you need to disconnect the currently connected device. The Bluetooth antenna has a relatively short range Check if the paired device (e.g., a mobile phone) supports Bluetooth version 4.0 or higher. Earlier versions may result in a shorter Bluetooth signal range. 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 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 off and on, the user is encouraged to try to correct th…

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Dongguan Xinzhonghua Electronic Technology Co., Ltd. Covered Equipment Certification Attestation Letter 1/27/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2BUMS-SMB16 Dongguan Xinzhonghua Electronic 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. Dongguan Xinzhonghua 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 (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Dongguan Xinzhonghua Electronic Technology Co., Ltd. (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). <Signature>: Name: Jack Bu Title: Manager Company: Dongguan Xinzhonghua Electronic Technology Co., Ltd. Date: 1/27/2026

Dongguan Xinzhonghua Electronic Technology Co., Ltd. * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 1/27/2026 TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2BUMS-SMB16 FRN of applicant: 0037935350 Per section 2.911(d)(7) of the FCC rules, [Dongguan Xinzhonghua Electronic Technology Co., Ltd. ] (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: Herland International Trading Inc FCC Registration Number (FRN): 0036324101 Physical U.S. Company Address: 1370 Valley Vista Dr Ste 200 Diamond Bar, CA 91765 Contact Person: Jianfeng Gao Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant 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. Applicant Signed: Signed: Printed name: Jack bu Title: Manager Company Name: Dongguan Xinzhonghua Electronic Technology Co., Ltd. Date: 1/27/2026 Agent Signed (if different from Applicant): Signed: Printed name: Jianfeng Gao Title: Manager Company Name: Herland International Trading Inc Date: 1/27/2026

Dongguan Xinzhonghua Electronic Technology Co., Ltd. 2026-01-27 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen DL Testing Technology Co., Ltd.（101-201, Comprehensive Building, Tongzhou Electronics Longgang Factory Area, No.1 Baolong Fifth Road, Baolong Community, Baolong Street, Longgang District, Shenzhen, China）to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with Dongguan Xinzhonghua Electronic Technology Co., Ltd. （No. 1, Qianli Road, Dalang Songbai Lang Oil Press, Dongguan City） <Signature>: Name: Jack Bu Title: Manager Company: Dongguan Xinzhonghua Electronic Technology Co., Ltd.

Dongguan Xinzhonghua Electronic Technology Co., Ltd. 2026-01-27 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Compliance Testing, LLC to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). Sincerely, <Signature>: Name: Jack Bu Title: Manager Company: Dongguan Xinzhonghua Electronic Technology Co., Ltd.

Dongguan Xinzhonghua Electronic Technology Co., Ltd. 2026-01-27 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2BUMS-SMB16 Product Name: Bone Conduction Sleeping Speaker Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...)  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature>: Name: Jack Bu Title: Manager Company: Dongguan Xinzhonghua Electronic Technology Co., Ltd.

Dongguan Xinzhonghua Electronic Technology Co., Ltd. FCC ID: 2BUMS-SMB16 Product Similarity Declaration Applicant: Dongguan Xinzhonghua Electronic Technology Co., Ltd. Address: No. 1, Qianli Road, Dalang Songbai Lang Oil Press, Dongguan City Manufacturer: Dongguan Xinzhonghua Electronic Technology Co., Ltd. Address: No. 1, Qianli Road, Dalang Songbai Lang Oil Press, Dongguan City Product Name: Bone Conduction Sleeping Speaker Trade Mark: N/A Model Number: SMB-16, SMB-17, SMB-18, SMB-19, SMB-20, SMB-21 We (Dongguan Xinzhonghua Electronic 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: Dongguan Xinzhonghua Electronic Technology Co., Ltd.

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. ※※※※※ END OF REPORT ※※※※※

Size: 22*18mm Model.: SMB-16 FCC ID: 2BUMS-SMB16 Label location

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

FCC ID: 2BUMS-SMB16 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, EDR Peak Output Power (dBm) Max tune-up (mW) Frequency (MHz) Min. distance(mm) Calc. thresholds limit 5.54 3.58 2402 5 1.11 3.0 So a SAR test is not required

Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260109036R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 51 FCC Part 15C Test Report FCC ID: 2BUMS-SMB16 Applicant: Dongguan Xinzhonghua Electronic Technology Co., Ltd. Address: No. 1, Qianli Road, Dalang Songbai Lang Oil Press, Dongguan City Manufacturer: Dongguan Xinzhonghua Electronic Technology Co., Ltd. Address: No. 1, Qianli Road, Dalang Songbai Lang Oil Press, Dongguan City Product Name: Bone Conduction Sleeping Speaker Trade Mark: N/A Model Number: SMB-16, SMB-17, SMB-18, SMB-19, SMB-20, SMB-21 Date of Receipt: Jan. 09, 2026 Test Date: Jan. 09, 2026 - Jan. 21, 2026 Date of Report: Jan. 21, 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 15.247 ANSI C63.10:2020 Test Result: Pass Report Number: DLE-260109036R Prepared (Test Engineer): Randy Xie 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-260109036R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 51 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 14 3.2.5 EUT OPERATING CONDITIONS 15 3.2.6 TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 16 3.2.7 TEST RESULTS (BETWEEN 30MHZ – 1GHZ) 17 3.2.8 TEST RESULTS (1GHZ~25GHZ) 19 3.3 RADIATED BAND EMISSION MEASUREMENT 22 3.3.1 TEST REQUIREMENT: 22 3.3.2 TEST PROCEDURE 22 3.3.3 DEVIATION FROM TEST STANDARD 22 3.3.4 TEST SETUP 23 3.3.5 EUT OPERATING CONDITIONS 23 4 . PEAK OUTPUT POWER 35 4.1 APPLIED PROCEDURES / LIMIT 35 4.1.1 TEST PROCEDURE 35 4.1.2 DEVIATION FROM STANDARD 35 4.1.3 TEST SETUP 35 4.1.4 EUT OPERATION CONDITIONS 35 Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260109036R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 3 of 51 Table of Contents Page 4.1.5 TEST RESULTS 36 5 . NUMBER OF HOPPING CHANNEL 39 5.1 APPLIED PROCEDURES / LIMIT 39 5.1.1 TEST PROCEDURE 39 5.1.2 DEVIATION FROM STANDARD 39 5.1.3 TEST SETUP 39 5.1.4 EUT OPERATION CONDITIONS 39 5.1.5 TEST RESULTS 39 6 . BANDWIDTH TEST 41 6.1 APPLIED PROCEDURES / LIMIT 41 6.1.1 TEST PROCEDURE 41 6.1.2 DEVIATION FROM STANDARD 41 6.1.3 TEST SETUP 41 6.1.4 EUT OPERATION CONDITIONS 41 6.1.5 TEST RESULTS 42 7 . HOPPING CHANNEL SEPARATION MEASUREMENT 45 7.1 APPLIED PROCEDURES / LIMIT 45 7.1.1 TEST PROCEDURE 45 7.1.2 DEVIATION FROM STANDARD 45 7.1.3 TEST SETUP 45 7.1.4 EUT OPERATION CONDITIONS 45 7.1.5 TEST RESULTS 45 8 . DWELL TIME OF OCCUPANCY 47 8.1 APPLIED PROCEDURES / LIMIT 47 8.1.1 TEST PROCEDURE 47 8.1.2 DEVIATION FROM STANDARD 47 8.1.3 TEST SETUP 47 8.1.4 EUT OPERATION CONDITIONS 47 8.1.5 TEST RESULTS 48 9 . ANTENNA REQUIREMENT 51 9.1 STANDARD REQUIREMENT 51 9.2 EUT ANTENNA 51 10 . TEST SEUUP PHOTO 51 11 . EUT PHOTO 51 Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260109036R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 4 of 51 1.. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.247) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS 15.247(c) Radiated Spurious Emission PASS 15.205 Band Edge Emission PASS 15.247(b)(1) Peak Output Power PASS 15.247(a)(iii) Number of Hopping Frequency PASS 15.247(a)(iii) Dwell Time PASS 15.247(a)(1) Bandwidth PASS 15.247(a)(1) Hopping Channel Separation 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 ±0.2MHz Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260109036R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 5 of 51 2.. GENERAL INFORMATION 2.1. GENERAL DESCRIPTION OF EUT Product Name: Bone Conduction Sleeping Speaker Trade Mark: N/A Model Number: SMB-16, SMB-17, SMB-18, SMB-19, SMB-20, SMB-21 Test Model: SMB-16 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 …

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ShenzhenYuanDingwuDigitalTechnologyCo.,Ltd. Address:BuildingA,3rdFloor,RuixingScienceandTechnologyPark,No.6SanheRoad, DalongPeakCommunity,LonghuaDistrict,Shenzhen Telephone:86-755-8326-6570Fax:86-755-8325540 BluetoothAntennaSampleAcknowledgmentForm BTAntennaProductApproval Date:2025-10-21 一、AntennaIntroduction Ourcompany'sBluetoothantennaisdirectlyfabricatedonto thePCBboard.Theantennaismadeusingacopperfoilwithtin platingprocess.ThecopperfoilthicknessisH/HOZ.Theboard materialisFR-4withathicknessof1.0mm. ShenzhenYuanDingwuDigitalTechnologyCo.,Ltd. Address:BuildingA,3rdFloor,RuixingScienceandTechnologyPark,No.6Sanhe Road,DalongPeakCommunity,LonghuaDistrict,Shenzhen Telephone:86-755-8326-6570Fax:86-755-8325540 二、Antennashape 1.Dimensiondrawing：9.9*3.9*0.5mm 三、Antennaparameters 2 TheworkingfrequencyoftheBluetoothantennaiswithinthe rangeof2402-2480MHz,anditresonatesinthisfrequency band.Thefollowingtablepresentsthemainparametersofthe antenna. Built-inBluetoothantenna Frequency(MHz)2402~2480MHz VSWR≤1.92 Impedance50OhmNominal ReturnLoss-10dBMax RadiationOmni-directional Gain(Peak)-0.347dBi PolarizationLinear,Vertical AdmittedPower2W ConnectorTin 四、AntennaGainTestReport SpectrumDetector:PKTestDate:June8,2013 TestBy:AndyTemperature:28°C TestResult:PASSHumidity:55% Modulation:GFSK Maximumgainvalue FrequencyVNAETotal.dB(dB) (MHz) 2400MHz-0.347483 2410MHz-0.502625 2420MHz-0.772879 2430MHz-0.955555 2440MHz-1.23072 2450MHz-1.94066 2460MHz-1.90725 2470MHz-2.01968 2480MHz-2.30721 3 2490MHz-2.28333 2500MHz-2.8728 Directionalpattern： PHI0度 4 PHI90度 THETA90度 Standingwavediagram： 5

Shenzhen DL Testing Technology Co., Ltd. EUT TEST PHOTO Radiated Measurement Photos Shenzhen DL Testing Technology Co., Ltd. Conducted Measurement Photos ※※※※※ END OF REPORT ※※※※※