2BVZV-5IN1Sleep night light

guangzhoujiuzhixikejiyouxiangongsi Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 [May 9, 2026] U.S. Agent Designation [guangzhoujiuzhixikejiyouxiangongsi] acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought FCC ID: 2BVZV-5IN1 Name and company of U.S. agent: [GLOCERTS TECHNOLOGY INC] Physical U.S. address of agent: [19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507] FRN of U.S. agent: [0036339737] Email address of U.S. agent: [[email protected]] Telephone of U.S.agent: (626) 588-8039 [GLOCERTS TECHNOLOGY INC] acknowledges their obligation to accept service of process on behalf of [guangzhoujiuzhixikejiyouxiangongsi]. [guangzhoujiuzhixikejiyouxiangongsi] with the FRN [0038398277] accepts its obligation to maintain an agent for service of process in the United States for no less than 1 year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Sincerely, Signature Signature [Qin Yingjuan] [Huiying Fan] [CEO] [Director] [guangzhoujiuzhixikejiyouxiangongsi] [GLOCERTS TECHNOLOGY INC]

guangzhoujiuzhixikejiyouxiangongsi 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: guangzhoujiuzhixikejiyouxiangongsi Address: baiyunqudayuanjiemilongjianyelu37hao204shi guangzhou guangdong China Product Name: Sleep night light FCC ID: 2BVZV-5IN1 Model(s): 5-in-1 Sleep Hub 2.911(d)(5)(i) Equipment Type We, [guangzhoujiuzhixikejiyouxiangongsi] (“the applicant”) certify that the equipment for which authorization is sought through certification is not:  Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules.  Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Name: Qin Yingjuan / Date: May 9, 2026 Title and Company name: CEO / guangzhoujiuzhixikejiyouxiangongsi NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

guangzhoujiuzhixikejiyouxiangongsi 2.911 (d)(5)(ii) Applicant Attestation v1.2 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: guangzhoujiuzhixikejiyouxiangongsi Address: baiyunqudayuanjiemilongjianyelu37hao204shi guangzhou guangdong China Product Name: Sleep night light FCC ID: 2BVZV-5IN1 Model(s): 5-in-1 Sleep Hub 2.911(d)(5)(ii) Applicant filing We, [guangzhoujiuzhixikejiyouxiangongsi] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 , established pursuant to § 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: Qin Yingjuan / Date: May 9, 2026 Title and Company name: CEO / guangzhoujiuzhixikejiyouxiangongsi NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

guangzhoujiuzhixikejiyouxiangongsi Agent Authorization Company: guangzhoujiuzhixikejiyouxiangongsi Address: baiyunqudayuanjiemilongjianyelu37hao204shi guangzhou guangdong China Product Name: Sleep night light Model Number(s): 5-in-1 Sleep Hub Product Description: Sleep night light We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: May 9, 2026 Name: Qin Yingjuan Title: CEO Company: guangzhoujiuzhixikejiyouxiangongsi

guangzhoujiuzhixikejiyouxiangongsi Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: May 9, 2026 Subject; Request for Confidentiality FCC ID: 2BVZV-5IN1 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuantto KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Qin Yingjuan Title: CEO

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: 5-in-1 Sleep Hub External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 4

FCC ID LABEL: Label Location: FCC ID: 2BVZV-5IN1 Model No.: 5-in-1 Sleep Hub

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 3 Model: 5-in -1 Sleep Hub Internal Photos ANT Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 3 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 3

Shenzhen CTB Testing Technology Co., Ltd. FCC ID: 2BVZV-5IN1 Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR 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 When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. EDR: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402 2.86 1.93 2±1 3.00 2.00 <5 0.61847 3.00 YES 2.441 4.43 2.77 4±1 5.00 3.16 <5 0.98813 3.00 YES 2.480 4.36 2.73 4±1 5.00 3.16 <5 0.99599 3.00 YES 2.402 3.04 2.01 3±1 4.00 2.51 <5 0.77860 3.00 YES 2.441 4.58 2.87 4±1 5.00 3.16 <5 0.98813 3.00 YES 2.480 4.57 2.86 4±1 5.00 3.16 <5 0.99599 3.00 YES 2.402 3.69 2.34 3±1 4.00 2.51 <5 0.77860 3.00 YES 2.441 3.24 2.11 3±1 4.00 2.51 <5 0.78490 3.00 YES 2.480 3.25 2.11 3±1 4.00 2.51 <5 0.79114 3.00 YES GFSK π /4DQPSK 8DQPSK Conclusion: For the max result : 0.99599≤ FCC Limit 3.0 for 1g SAR.

TZ-80 Small Size 2.4 GHz PCB antenna Manufacturer: Built-in PCB antenna 1 KEYWORDS 1.1 PCB antenna 1.2 2.4 GHz 1.3 Inverted F Antenna 2 INTRODUCTION The PCB antenna used on the TZ-80 BLUETOOTH SPEAKER reference design is described in this application note. It can be used in all 2.4 GHz designs, especially where small space is required for the antenna. This application note describes the antenna dimensions, the RF performance and considerations for complying with regulatory limits when using this design. The suggested antenna design requires no more than 16.7 x 5.2 mm of space and ensures a VSWR ratio of less than 2 across the 2.4 GHz ISM band when connected to a 50 ohm source. 3 ABBREVIATIONS IFA Inverted F Antenna ISM Industrial, Scientific, Medical LOS Line Of Sight PCB Printed Circuit Board PER Packet Error Rate VSWR Voltage Standing Wave Ratio 4 ANTENNA DESIGN The PCB antenna on the TZ-80 BLUETOOTH SPEAKER reference design is a meandered Inverted F Antenna (IFA). The IFA was designed to match an impedance of 50 ohm at 2.45 GHz. Thus no additional matching components are necessary. 4.1 Design Goals The reflection at the feed point of the antenna determines how much of the applied power is delivered to the antenna. A reflection of less than -10 dB across the 2.4 GHz ISM band, when connected to a 50 ohm source, was a design goal. Reflection of less than -10 dB, or VSWR less than 2, ensures that more than 90% of the available power is delivered to the antenna. 4.2 Simulation The antenna was designed using professional electromagnetic simulation software. Comparison of simulation and measurement results shows that the measured reflection is consistent with simulation data. 4.3 Layout and Implementation Small changes of the antenna dimensions may have large impact on the performance. Therefore it is strongly recommended to make an exact copy of the reference design to achieve optimum performance. Figure 1: Antenna Dimensions 5 TEST RESULTS Reflection, radiation pattern and output power were measured to verify the performance of the PCB antenna in free space, powered by battery only. 5.1 Reflection All reflection measurements were performed with a network analyzer. The antenna has a bandwidth of approximately 250 MHz, which fully covers the 2.4 GHz ISM band. Plastic encapsulation will shift the resonance frequency lower, which can be compensated by making the antenna slightly shorter. Figure 2: Influence of Plastic Encapsulation and Test Pins Figure 3: Comparison of Performance 5 .2 Radiation Pattern The radiation pattern was measured in an anechoic chamber. Figure 4 to Figure 10 show the radiation patterns for XY, XZ and YZ planes with vertical and horizontal polarization. All measurements were performed with 0 dBm output power. X Y plane YZ plane XZ plane Figure 4: How to Relate the Antenna to the Radiation Patterns Figure 5: TZ-80 BLUETOOTH SPEAKER XY Plane Figure 6: TZ-80 BLUETOOTH SPEAKER XY Plane Figure 7: TZ-80 BLUETOOTH SPEAKER XZ Plane Figure 8: TZ-80 BLUETOOTH SPEAKER XZ Plane Figure 9: TZ-80 BLUETOOTH SPEAKER YZ Plane Figure 10: TZ-80 BLUETOOTH SPEAKER YZ Plane 5.3 Output Power The antenna has a variation in output power of less than 3 dB across a bandwidth wider than 350 MHz, showing excellent broadband performance. Maximum output power is measured at 2.54 GHz. Figure 13: Output Power, TZ-80 BLUETOOTH SPEAKER 5.4 Spurious Emission and Harmonics Table 2 shows measured output power and emission at the second harmonic. No significant peaks were detected above the second harmonic. Output power 2.44 GHz 4.88 GHz 1 dBm 96.9 dBμV/m 56.1 dBμV/m 0 dBm 96.1 dBμV/m 54.3 dBμV/m -2 dBm 93.1 dBμV/m 52.5 dBμV/m Table 1: Measured Level of Output Power and Harmonics EN 300 328 EN 300 440 FCC 15.247 FCC 15.249 2.4 – 2.483 GHz 20 dBm 10 dBm* 125 dBμV/m 94 dBμV/m 2nd harmonic -30 dBm -30 dBm 54 dBμV/m 54 dBμV/m *Depends on the power class. ** Depends on the number of channels being used. Table 2: ETSI and FCC Limits 5.5 Antenna Peak Gain vs Frequency Frequency (MHz) Peak Gain (dBi) 2402 4.2 2412 4.3 2422 4.4 2432 4.5 2442 4.5 2452 4.5 2462 4.4 2472 4.3 2482 4.2 Table 3: Peak Gain vs Frequency 6 CONCLUSION This application note shows that it is possible to implement a high-performance 2.4 GHz PCB antenna in a very small size for Bluetooth speaker applications. Gain in XY plane 4.5 dB Gain in XZ plane 5.3 dB Gain in YZ plane 5.3 dB LOS range 10 m Antenna size 16.7 x 5.2 mm Table 4: IFA Properties Test results demonstrate that the antenna fully complies with ETSI and FCC regulations for 2.4 GHz Bluetooth devices

Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 59 TEST REPORT Compiled by: Reviewed by: Approved by: Kai Chen Martin Feng Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. 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. The tested sample(s) and the sample information are provided by the applicant. The authenticity, accuracy, and completeness of the provided information are the sole responsibility of the applicant. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The result decision rules of our laboratory are based solely on the direct comparison between the actual measured values of test results and the standard limits, without considering the measurement uncertainty.“” indicates the testing items were fulfilled by subcontracted lab. “” indicates the items are not in CNAS accreditation scope. Test item description: Sleep night light FCC ID: 2BVZV-5IN1 Trademark(s): N/A Model/Type reference: 5-in-1 Sleep Hub Applicant’s name: guangzhoujiuzhixikejiyouxiangongsi Address: baiyunqudayuanjiemilongjianyelu37hao204shi guangzhou guangdong China Manufacturer: guangzhoujiuzhixikejiyouxiangongsi Address: baiyunqudayuanjiemilongjianyelu37hao204shi guangzhou guangdong China Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Apr. 17, 2026 Sample tested Date: Apr. 17, 2026 to Apr. 29, 2026 Issue Date: Apr. 29, 2026 Report No.: CTB26041705701RF01 Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2020 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB26041705701RF01 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 59 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ........................................................................................................................................................ 4 2. TEST SUMMARY .......................................................................................................................................... 5 3. MEASUREMENT UNCERTAINTY............................................................................................................. 6 4. PRODUCT INFORMATION AND TEST SETUP ..................................................................................... 7 4.1 Product Information .................................................................................................................................................... 7 4.2 Test Setup Configuration .......................................................................................................................................... 7 4.3 Support Equipment ..................................................................................................................................................... 7 4.4 Channel List .................................................................................................................................................................. 8 4.5 Test Mode ...................................................................................................................................................................... 8 4.6 Test Environment ........................................................................................................................................................ 8 5. TEST FACILITY AND TEST INSTRUMENT USED ................................................................................ 9 5.1 Test Facility ................................................................................................................................................................... 9 5.2 Test Instrument Used ................................................................................................................................................. 9 6. AC POWER LINE CONDUCTED EMISSION .......................................................................................... 12 6.1 Block Diagram Of Test Setup ................................................................................................................................ 12 6.2 Limit ............................................................................................................................................................................... 12 6.3 Test procedure ........................................................................................................................................................... 12 6.4 Test Result .................................................................................................................................................................. 14 7. RADIATED SPURIOUS EMISSION ........................................................................................................ 16 7.1 Block Diagram Of Test Setup ................................................................................................................................ 16 7.2 Limit ............................................................................................................................................................................... 16 7.3 Test procedure ........................................................................................................................................................... 17 7.4 Test Result .................................................................................................................................................................. 18 8. BAND EDGE AND RF …

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Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: 5-in-1 Sleep Hub Radiated Emission Below 1G Above 1G Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Conducted emissions