2A8ZP-MC330white noise machine

FCCStatement Thisequipmenthasbeentestedandfoundtocomplywiththelimitsfor aClassBdigitaldevice,pursuanttopart15oftheFCCRules.These limitsaredesignedtoprovidereasonableprotectionagainstharmful interferenceinaresidentialinstallation.Thisequipmentgenerates, usesandcanradiateradiofrequencyenergyand,ifnotinstalledand usedinaccordancewiththeinstructions,maycauseharmful interferencetoradiocommunications.However,thereisnoguarantee thatinterferencewillnotoccurinaparticularinstallation.Ifthis equipmentdoescauseharmfulinterferencetoradioortelevision reception,whichcanbedeterminedbyturningtheequipmentoffand on,theuserisencouragedtotrytocorrecttheinterferencebyoneor moreofthefollowingmeasures: •Reorientorrelocatethereceivingantenna. •Increasetheseparationbetweentheequipmentandreceiver. •Connecttheequipmentintoanoutletonacircuitdifferentfromthat towhichthereceiverisconnected. •Consultthedealeroranexperiencedradio/TVtechnicianforhelp. Caution:Anychangesormodificationstothisdevicenotexplicitly approvedbymanufacturercouldvoidyourauthoritytooperatethis equipment. Thisdevicecomplieswithpart15oftheFCCRules.Operationis subjecttothefollowingtwoconditions:(1)Thisdevicemaynotcause harmfulinterference,and(2)thisdevicemustacceptanyinterference received,includinginterferencethatmaycauseundesiredoperation. RFExposureInformation ThedevicehasbeenevaluatedtomeetgeneralRFexposurerequirement . Thedevicecanbeusedinportableexposurecondition,compliancewith exposurerequirements.

Shenzhen Tuodi Electronics Co., Ltd Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 6/12/2024 U.S. Agent Designation Shenzhen Tuodi Electronics Co., Ltd 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: 2A8ZP-MC330): Name and company of U.S. agent: FCC US Agent, LLC Physical U.S. address of agent: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA FRN of U.S. agent: 0033402884 Email address of U.S. agent: [email protected] FCC US Agent, LLC acknowledges their obligation to accept service of process on behalf of Shenzhen Tuodi Electronics Co., Ltd. Shenzhen Tuodi Electronics Co., Ltd with the FRN 0032997959 accepts its obligation to maintain an agent for service of process in the United States for no less than one 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. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. S incerely, Signature Min Chen Shenzhen Tuodi Electronics Co., Ltd Signature Tim Payne Manager FCC US Agent, LLC 48_[model] US_Agent_2.911(d)(7)-U, V05

Covered Equipment Identification Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows: We, applicant Company Name: Shenzhen Tuodi Electronics Co., Ltd Address: 3th floor, 29 building YongFa North industrial park, Gonghe, Shajing, Baoan, Shenzhen, China Phone: +86-755-27283861 certify 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. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2024-06-11 Name / Title: Min Chen / Manager Company: Shenzhen Tuodi Electronics Co., Ltd Address: 3th floor, 29 building YongFa North industrial park, Gonghe, Shajing, Baoan, Shenzhen, China Phone: +86-755-27283861 Fax Number: +86-755-27283861 E-Mail: [email protected]

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2A8ZP-MC330 MC330, MC220, MC330, MC230, MC350, MC550, MC588, TDL-220, TDL-330, TDL-588 We, applicant Company Name: Shenzhen Tuodi Electronics Co., Ltd Address: 3th floor, 29 building YongFa North industrial park, Gonghe, Shajing, Baoan, Shenzhen, China Phone: +86-755-27283861 certify 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. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2024-06-11 Name / Title: Min Chen / Manager Company: Shenzhen Tuodi Electronics Co., Ltd Address: 3th floor, 29 building YongFa North industrial park, Gonghe, Shajing, Baoan, Shenzhen, China Phone: +86-755-27283861 Fax Number: +86-755-27283861 E-Mail: [email protected]

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products: FCC ID Model name 2A8ZP-MC330 MC330, MC220, MC330, MC230, MC350, MC550, MC588, TDL-220, TDL-330, TDL-588 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics • the Part List • the Tune up Information The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2024-06-11 Name / Title: Min Chen / Manager Company: Shenzhen Tuodi Electronics Co., Ltd Address: 3th floor, 29 building YongFa North industrial park, Gonghe, Shajing, Baoan, Shenzhen, China Phone: +86-755-27283861 Fax Number: +86-755-27283861 E-Mail: [email protected]

Shenzhen Tuodi Electronics Co., Ltd 3th floor, 29 building YongFa North industrial park, Gonghe, Shajing, Baoan, Shenzhen, China Date: June 11, 2024 FCC ID: 2A8ZP-MC330 Model Number: MC330, MC220, MC330, MC230, MC350, MC550, MC588, TDL-220, TDL-330, TDL-588 To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, Shenzhen Tuodi Electronics Co., Ltd hereby declare that our product (white noise machine) Model Number: MC330, MC220, MC330, MC230, MC350, MC550, MC588, TDL-220, TDL-330, TDL-588 board, Schematic, Hardware version, Software version, structure and internal photos are same, named and appearance differently due to marketing purposes. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely, (Signed) Name / Title: Min Chen / Manager Company: Shenzhen Tuodi Electronics Co., Ltd Address: 3th floor, 29 building YongFa North industrial park, Gonghe, Shajing, Baoan, Shenzhen, China Phone: +86-755-27283861 Fax: +86-755-27283861 E-Mail: [email protected]

Page1of4FCCID:2A8ZP-MC330 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,Baoan District,Shenzhen,518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity ExternalPhotosoftheEUT Fig.1 Fig.2 Page2of4FCCID:2A8ZP-MC330 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,Baoan District,Shenzhen,518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.3 Fig.4 Page3of4FCCID:2A8ZP-MC330 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,Baoan District,Shenzhen,518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.5 Fig.6 Page4of4FCCID:2A8ZP-MC330 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,Baoan District,Shenzhen,518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.7

Page1of1FCCID:2A8ZP-MC330 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity LABELANDLOCATION (Size:L17.0cmxW12.0cm) LabelLocation whitenoisemachine Model:MC330 FCCID:2A8ZP-MC330

Page1of4FCCID:2A8ZP-MC330 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity InternalPhotosoftheEUT Fig.1 Fig.2 Page2of4FCCID:2A8ZP-MC330 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.3 Fig.4 Page3of4FCCID:2A8ZP-MC330 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.5 Fig.6 Page4of4FCCID:2A8ZP-MC330 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.7 BluetoothAntenna

Page 1 of 3 FCC ID: 2A8ZP-MC330 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Maximum Permissible Exposure Report 1. Product Information EUT : white noise machine Test Model : MC330 Additional Model No. : MC220/MC330/MC230/MC350/MC550/MC588/TDL-220/TDL-330/TDL-588 Model Declaration : PCB board, structure and internal of these model(s) are the same, So no additional models were tested Power Supply : Input: DC 3.7V, 560m DC 3.7V By Li-ion Battery(1500mAh) Hardware Version : / Software Version : / Bluetooth Frequency Range : 2402MHz~2480MHz Channel Number : 79 channels for Bluetooth V5.4(DSS) 40 channels for Bluetooth V5.4 (DTS) Channel Spacing : 1MHz for Bluetooth V5.4 (DSS) 2MHz for Bluetooth V5.4 (DTS) Modulation Type : GFSK, π/4-DQPSK, 8-DPSK for Bluetooth V5.4(DSS) GFSK for Bluetooth V5.4 (DTS) Bluetooth Version : V5.4 Antenna Description : PCB Antenna, 2.499dBi (Max.) Exposure category : General population/uncontrolled environment EUT Type : Production Unit Device Type : Portable Devices 2. Evaluation Method According to KDB 447498 test exclusion considerations: “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, listed below, is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions.22 The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1). To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, typically in the SAR measurement or SAR analysis report, according to the required published RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for the SAR test exclusion. When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion provisions; for example, handheld PTT two-way radios, handsets, laptops & tablets etc.“ [(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 • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below 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 according to f) in section 4.1 is applied to determine SAR test exclusion. When one of the following test exclusion conditions is satisfied for all combinations of simultaneous transmission configurations, further equipment approval is not required to incorporate transmitter modules in host devices that operate in the mixed mobile and portable host platform exposure conditions. The grantee is responsible for Page 2 of 3 FCC ID: 2A8ZP-MC330 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity documenting this according to Class I permissive change requirements. Antennas that qualify for standalone SAR test exclusion must apply the estimated standalone SAR to determine simultaneous transmission test exclusion. a) The [∑ of (the highest measured or estimated SAR for each standalone antenna configuration, adjusted for maximum tune-up tolerance) / 1.6 W/kg] + [∑ of MPE ratios] is ≤ 1.0. b) The SAR to peak location separation ratios of all simultaneously transmitting antenna pairs operating in portable device exposure conditions are all ≤ 0.04, and the [∑ of MPE ratios] is ≤ 1.0. 3. Limit ANSI C95.1–2019: IEEE Standard for Safety Levels with Respect to Human Exposure to Electric, Magnetic, and Electromagnetic Fields, 0 Hz to 300 GHz FCC KDB publication 447498 D01 General 1 RF Exposure Guidance v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies. FCC CFR 47 part1 1.1310: Radiofrequency radiation exposure limits. FCC CFR 47 part2 2.1093: Radiofrequency radiation exposure evaluation: Portable devices. 4. Conducted Power [BT] Mode Channel Frequency (MHz) Peak Conducted Output Power (dBm) GFSK 0 2402 -0.56 39 2441 0.04 79 2480 0.21 π/4-DQPSK 00 2402 -1.17 39 2441 -0.54 79 2480 -0.21 8-DPSK 00 2402 -0.71 39 2441 -0.11 79 2480 0.19 [BT LE] Mode Channel Frequency (MHz) Peak Conducted Output Power (dBm) GFSK 0 2402 0.39 19 2440 -0.51 39 2480 -0.17 5. Manufacturing Tolerance <BT> GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 0 0 0 Tolerance ± (dB) 1.0 1.0 1.0 π/4DQPSK (Peak) Chann…

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2.4G-2.48G频段板载PIFA天线测试报告 SPECIFICATIONS Frequency（MHz）2400-2480 PeakGain（dBi） 2.499 AverageGain（dBi）＞-4 VSWR＜3.2 Impedance（Ω）50Ω AntennaTypePlannarInvertedFAntennaonboard PolarizationLinear 测试环境：中科国技暗室测试系统 Z X Y Manufacturer: Zhuhai JieLi Technology Co., Ltd Address: 333 Kexing Road, Nanping Town, Zhuhai, China 天线实物及物理尺寸 天线无源S参数： 驻波比（ VSWR ）、回波损耗（ ReturnLoss ）及史密斯圆图 天线效率及增益 Frequency（MHz）Gain（dBi）Effciency（%）AverageGain（dBi）Efficiency（dB） 24001.43359.329%-2.717-2.267 24100.92751.861%-3.416-2.852 24200.82952.112%-3.166-2.831 24300.88149.299%-3.258-3.072 24401.19250.672%-3.144-2.952 24501.68853.067%-2.735-2.752 24602.19459.423%-2.276-2.260 24702.11856.680%-2.438-2.466 24802.49961.727%-2.112-2.095 Average1.52954.908%-2.806-2.616 Peak2.49961.727%-2.112-2.095 天线2440MHz2D-ThetaPattern 天线2440MHz2D-PhiPattern 天线2440MHz3D-HorizontalPattern 天线2440MHz3D-VerticalPattern 2440MHz3D-TotalPattern

Page 1 of 23 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Appendix A RF Test Data for BT (Conducted Measurement) Product Name: white noise machine Test Model: MC330 Environmental Conditions Temperature: 23.8 C Relative Humidity: 52.1% ATM Pressure: 100.0 kPa Test Engineer: Jay Luo Supervised by: Nick Peng Page 2 of 23 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity B.1 -6dB Bandwidth Condition Mode Frequency (MHz) Antenna -6 dB Bandwidth (MHz) Limit -6 dB Bandwidth (MHz) Verdict NVNT BLE 1M 2402 Ant1 0.696 >=0.5 Pass NVNT BLE 1M 2440 Ant1 0.704 >=0.5 Pass NVNT BLE 1M 2480 Ant1 0.701 >=0.5 Pass Page 3 of 23 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Graphs -6dB Bandwidth NVNT BLE 1M 2402MHz Ant1 -6dB Bandwidth NVNT BLE 1M 2440MHz Ant1 Page 4 of 23 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity -6dB Bandwidth NVNT BLE 1M 2480MHz Ant1 Page 5 of 23 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity B.2 Maximum Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Duty Factor (dB) Total Power (dBm) Limit (dBm) Verdict NVNT BLE 1M 2402 Ant1 0.39 0 0.39 30 Pass NVNT BLE 1M 2440 Ant1 -0.51 0 -0.51 30 Pass NVNT BLE 1M 2480 Ant1 -0.17 0 -0.17 30 Pass Page 6 of 23 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Graphs Power NVNT BLE 1M 2402MHz Ant1 Power NVNT BLE 1M 2440MHz Ant1 Page 7 of 23 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Power NVNT BLE 1M 2480MHz Ant1 Page 8 of 23 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity B.3 Maximum Power Spectral Density Level Condition Mode Frequency (MHz) Antenna Conducted PSD (dBm/3kHz) Duty Factor (dB) Total PSD (dBm/3kHz) Limit (dBm/3kHz) Verdict NVNT BLE 1M 2402 Ant1 -14.73 0 -14.73 8 Pass NVNT BLE 1M 2440 Ant1 -15.71 0 -15.71 8 Pass NVNT BLE 1M 2480 Ant1 -15.35 0 -15.35 8 Pass Page 9 of 23 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Graphs PSD NVNT BLE 1M 2402MHz Ant1 PSD NVNT BLE 1M 2440MHz Ant1 Page 10 of 23 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity PSD NVNT BLE 1M 2480MHz Ant1 Page 11 of 23 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity B.4 Band Edge Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT BLE 1M 2402 Ant1 -56.5 -20 Pass NVNT BLE 1M 2480 Ant1 -55.49 -20 Pass Page 12 of 23 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Graphs Band Edge NVNT BLE 1M 2402MHz Ant1 Ref Band Edge NVNT BLE 1M 2402MHz Ant1 Emission Page 13 of 23 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301…

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Page 1 of 34 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity FCC TEST REPORT For Shenzhen Tuodi Electronics Co., Ltd white noise machine Test Model: MC330 Additional Model No.: Please Refer to Page 6 Prepared for : Shenzhen Tuodi Electronics Co., Ltd Address : 3th floor,29 building YongFa North industrial park, Gonghe Shajing Baoan Shenzhen Prepared by : Shenzhen LCS Compliance Testing Laboratory Ltd. Address : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel : (+86)755-82591330 Fax : (+86)755-82591332 Web : www.LCS-cert.com Mail : [email protected] Date of receipt of test sample : May 24, 2024 Number of tested samples : 2 Sample No. : A240517061-1, A240517061-2 Serial number : Prototype Date of Test : May 24, 2024 ~ May 29, 2024 Date of Report : May 30, 2024 Page 2 of 34 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity FCC TEST REPORT FCC CFR 47 PART 15 C(15.247) Report Reference No. ................. : LCSA05204133EB Date of Issue .................................. : May 30, 2024 Testing Laboratory Name ............ : Shenzhen LCS Compliance Testing Laboratory Ltd. Address .......................................... : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Testing Location/ Procedure .......... : Full application of Harmonised standards ■ Partial application of Harmonised standards □ Other standard testing method □ Applicant’s Name ......................... : Shenzhen Tuodi Electronics Co., Ltd Address .......................................... : 3th floor,29 building YongFa North industrial park, Gonghe Shajing Baoan Shenzhen Test Specification Standard ......................................... : FCC CFR 47 PART 15 C(15.247) Test Report Form No.................... : LCSEMC-1.0 TRF Originator ................................ : Shenzhen LCS Compliance Testing Laboratory Ltd. Master TRF ..................................... : Dated 2011-03 Shenzhen LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Shenzhen LCS Compliance Testing Laboratory Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. EUT Description. .......................... : white noise machine Trade Mark ..................................... : TUODI Test Model ...................................... : MC330 Ratings ........................................... : Input: DC 3.7V, 560m DC 3.7V By Li-ion Battery(1500mAh) Result ............................................ : Positive Compiled by: Supervised by: Approved by: Joker Hu / Administrator Cary Luo/ Technique principal Gavin Liang/ Manager Page 3 of 34 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity FCC -- TEST REPORT Test Model............................... : MC330 EUT......................................... : white noise machine Applicant............................... : Shenzhen Tuodi Electronics Co., Ltd Address.................................. : 3th floor,29 building YongFa North industrial park, Gonghe Shajing Baoan Shenzhen Telephone............................... : / Fax.......................................... : / Manufacturer........................ : Shenzhen Tuodi Electronics Co., Ltd Address................................... : 3th floor,29 building YongFa North industrial park, Gonghe Shajing Baoan Shenzhen Telephone............................... : / Fax.......................................... : / Factory................................... : Shenzhen Tuodi Electronics Co., Ltd Address................................... : 3th floor,29 building YongFa North industrial park, Gonghe Shajing Baoan Shenzhen Telephone............................... : / Fax.......................................... : / Test Result Positive The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Test Report No. : LCSA05204133EB May 30, 2024 Date of issue Page 4 of 34 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Revision History Report Version Issue Date Revision Content Revised By 000 May 30, 2024 Initial Issue --- Page 5 of 34 FCC ID: 2A8ZP-MC330 Report No.: LCSA05204133EB Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan …

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Page1of2FCCID:2A8ZP-MC330 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TestSetupPhotosoftheEUT TestSetupPhoto(s)ofRadiatedEmissionsMeasurement Fig.1 Fig.2 Page2of2FCCID:2A8ZP-MC330 ShenzhenLCSCompl…

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