2BB2O-NR404Bluetooth controller

APP operating instructions: 1、 Open Google Play or App Store and search for Install the HeatTech App 2、 Clothes are plugged in. 3、 Turn on your phone's Bluetooth: Open the drop-down status bar at the top of the screen and tap Bluetooth icon to turn on the phone's Bluetooth. Figure (1) 4、 Click the HeatTech icon (Figure (2)) to open the app 5、 Click Unconnected to enter the device list, drop down and search for the name HeatTech's Bluetooth device. 6、 Click HeatTech (Figure (3)) on the list to connect to Bluetooth. APP Automatic Back on the main page, the Bluetooth connection information bar shows Connected. 7、 Turn on the main power switch on the APP, and the three zones of the clothes display high-power heating. 8、 Click the High, Medium, and Low buttons in the front abdomen area to adjust for the heating temperature corresponding to the front abdomen zone, click the N/F button in the front abdomen zone .Front abdomen zone heating can be switched on and off separately; Click the High, Medium, and low button in the Collar area to adjust for the heating temperature corresponding to the Collar zone, and clicks the N/F button in the Collar zone. Collar zone heating can be switched on and off separately; Click High, Medium, and low button in the Back section to adjust for the heating temperature corresponding to the Back zone, and click the N/F button in the Back zone ,Heating of the back zone can be switched on and off separately; 9、 Click the light button to turn on or off the switch light on the heating jacket, and the button on the APP changes Grey. 10. Connect another piece of clothing, click Connected to enter the device list, pull down to refresh the list, disconnect the original connected device, and select the new device connection. Control operation 7~9 points. FCC Statement 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 the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. 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. RF Exposure Information The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

GuangzhouNuanRongTechnologyCo.,Ltd. FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 7/25/2023 U.S.AgentDesignation [GuangzhouNuanRongTechnologyCo.,Ltd.]acknowledgestheirconsentforthe followingcontactlocatedintheUnitedStatestoactastheiragentforserviceof processfortheequipmentfor whichauthorizationissought(FCCID:2BB2O-NR404): NameofU.S.agentcontactperson:taochen CompanyU.S.agent:GlobalProductCertificationAgent,LLC PhysicalU.S.addressofagent:30S.WackerDrive,Suite2200ChicagoILLINOIS60606USA FRNofU.S.agent:0034043588 EmailaddressofU.S.agent:[email protected] PhoneofU.S.agent:630-348-7600 FCCUSAgent,LLCacknowledgestheirobligationtoacceptserviceofprocessonbehalfof [ GuangzhouNuanRongTechnologyCo.,Ltd. ]. [GuangzhouNuanRongTechnologyCo.,Ltd.] acceptsitsobligationtomaintainanagentforserviceofprocessintheUnitedStatesforno lessthanoneyearaftereitherthegranteehaspermanentlyterminatedallmarketingand importationoftheapplicableequipmentwithintheU.S.,ortheconclusionofany Commission-relatedadministrativeorjudicialproceedinginvolvingtheequipment, whicheverislater. Bysigningthisform,weconfirmtheaboveandthatweareawareoftheapplicationrequirements listedunder§2.911(d)(7). Sincerely, Signature Liangli SalesManager GuangzhouNuanRongTechnologyCo.,Ltd. Chentao Signature Manager GlobalProductCertification Agent,LLC TheinformationprovidedinthisletterisbasedonthereferencedrulepartsofTitle47oftheCFRaswellasKDB986446D01. Anexpirationdateforthisletterdoesnotexist.IncasetheU.S.agentchanges,thegranteeisobligatedtonotifytheFCC.

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: Guangzhou NuanRong Technology Co., Ltd. Address: Building 9, First Sanjiang Industrial Zone, Shitan Town, Zengcheng District, Guangzhou, China Phone: +86-20-26229697 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:2023-07-24 Name / Title: LIANG LI / Manager Company: Guangzhou NuanRong Technology Co., Ltd. Address: Building 9, First Sanjiang Industrial Zone, Shitan Town, Zengcheng District, Guangzhou, China Phone: +86-20-26229697 Fax: +86-20-26229697 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 2BB2O-NR404 NR404 We, applicant Company Name: Guangzhou NuanRong Technology Co., Ltd. Address: Building 9, First Sanjiang Industrial Zone, Shitan Town, Zengcheng District, Guangzhou, China Phone: +86-20-26229697 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:2023-07-24 Name / Title: LIANG LI / Manager Company: Guangzhou NuanRong Technology Co., Ltd. Address: Building 9, First Sanjiang Industrial Zone, Shitan Town, Zengcheng District, Guangzhou, China Phone: +86-20-26229697 Fax: +86-20-26229697 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 2BB2O-NR404 NR404 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 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:2023-07-24 Name / Title: LIANG LI / Manager Company: Guangzhou NuanRong Technology Co., Ltd. Address: Building 9, First Sanjiang Industrial Zone, Shitan Town, Zengcheng District, Guangzhou, China Phone: +86-20-26229697 Fax: +86-20-26229697 E-Mail: [email protected]

Page 1 of 5 FCC ID: 2BB2O-NR404 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 External Photos of the EUT Fig. 1 Fig. 2 Page 2 of 5 FCC ID: 2BB2O-NR404 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 Fig. 3 Fig. 4 Page 3 of 5 FCC ID: 2BB2O-NR404 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 Fig. 5 Fig. 6 Page 4 of 5 FCC ID: 2BB2O-NR404 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 Fig. 7 Fig. 8 Page 5 of 5 FCC ID: 2BB2O-NR404 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 Fig. 9 Fig. 10

Page 1 of 2 FCC ID: 2BB2O-NR404 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 Internal Photos of the EUT Fig. 1 Fig. 2 Page 2 of 2 FCC ID: 2BB2O-NR404 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 Fig. 3 Antenna

Page 1 of 3 FCC ID: 2BB2O-NR404 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 RF Exposure Evaluation 1. Product Information FCC ID : 2BB2O-NR404 Product name : Bluetooth controller Test Model : NR404 Power Supply : Input :DC 5V, 2000mA Hardware Version : V1.0 Software Version : V1.0 Bluetooth : 2402MHz ~ 2480MHz Channel Number : 40 channels for Bluetooth V5.0 (DTS) Channel Spacing : 2MHz for Bluetooth V5.0(DTS) Modulation Type : GFSK for Bluetooth V5.0 (DTS) Bluetooth Version : V5.0 Antenna Type : Internal Antenna Antenna Gain : 2.24dBi Exposure category : General population/uncontrolled environment EUT Type : Production Unit Device Type : Portable Device 2. Evaluation method and Limit According to KDB447498 D01 General RF Exposure Guidance v06 Section 4.3.1 Standalone SAR 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 Page 2 of 3 FCC ID: 2BB2O-NR404 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 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 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. Refer Evaluation Method ANSI C95.1–1999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. FCC KDB publication 447498 D01 General 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 Page 3 of 3 FCC ID: 2BB2O-NR404 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 4. Conducted Power Results <BT LE> Mode Channel Frequency (MHz) Peak Conducted Output Power (dBm) GFSK 0 2402 -3.54 19 2440 -3.61 39 2480 -2.99 5. Manufacturing Tolerance <BT LE> GFSK (Peak) Channel Channel 0 Channel 19 Channel 39 Target (dBm) -3.0 -3.0 -2.0 Tolerance ±(dB) 1.0 1.0 1.0 6. Evaluation Results 6.1 Standalone Evaluation Band/Mode f (GHz) Antenna Distance (mm) RF output power SAR Test Exclusion Threshold SAR Test Excl…

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An t e nn a S p ec ifi c a t i o n Specifications Summary ITEMSPEC. ModelNameIBM2.4GHz CenterFrequency2402MHz 2441MHz 2480MHz 2.24dBi 2.20dBi 1.81dBi MAX.GAIN2.24dBi PolarizationHorizontal AzimuthBeamPatternOmni-directional Impedance50Ω AntennaLength 9.15 mm AntennaPhoto&Length(mm) Guangzhou NuanRong Technology Co., Ltd. NR404 1.Mainantenna:2402MHz (greenline:horizontalpower) (redline:verticalpower) 1.1Horizontal Frequency(MHZ): 2402 AntennaPolarity: Horizontal MaximumValue(dBi):2.24 AverageGain(dBi):-2.48 MinimumGain(dBi):-55.18 1.2Vertical Frequency(MHZ):2402AntennaPolarity:Vertical MaximumValue(dBi):-4.51 AverageGain(dBi):-8.98 MinimumGain(dBi):-62.3 2.Mainantenna:2441MHz 2.1Horizontal Frequency(MHZ):2441AntennaPolarity:Horizontal MaximumValue(dBi):2.20 AverageGain(dBi):-2.44 MinimumGain(dBi):-64.78 2.2Vertical Frequency(MHZ):2441AntennaPolarity:Vertical MaximumValue(dBi):-4.29 AverageGain(dBi):-8.41 MinimumGain(dBi):-47.4 2.Mainantenna:2480MHz 2.1Horizontal Frequency(MHZ):2480AntennaPolarity:Horizontal MaximumValue(dBi):1.81 AverageGain(dBi):-4.34 MinimumGain(dBi):-55.4 2.2Vertical Frequency(MHZ):2480AntennaPolarity:Vertical MaximumValue(dBi):-4.95 AverageGain(dBi):-14.06 MinimumGain(dBi):-64.00

Page 1 of 24 FCC ID: 2BB2O-NR404 Report No.: LCSA071023069EA 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 BLE (Conducted Measurement) Product Name: Bluetooth controller Test Model: NR404 Environmental Conditions Temperature: 23.1 C Relative Humidity: 52.3% ATM Pressure: 100.0 kPa Test Engineer: Taylor Hu Supervised by: Ling Zhu Page 2 of 24 FCC ID: 2BB2O-NR404 Report No.: LCSA071023069EA 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 A.1 DTS Bandwidth Test Result TestMode Antenna Channel DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE_2M Ant1 2402 1.232 2401.368 2402.600 0.5 PASS 2440 1.232 2439.368 2440.600 0.5 PASS 2480 1.236 2479.364 2480.600 0.5 PASS Page 3 of 24 FCC ID: 2BB2O-NR404 Report No.: LCSA071023069EA 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 BLE_2M_Ant1_2402 BLE_2M_Ant1_2440 BLE_2M_Ant1_2480 Page 4 of 24 FCC ID: 2BB2O-NR404 Report No.: LCSA071023069EA 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 Page 5 of 24 FCC ID: 2BB2O-NR404 Report No.: LCSA071023069EA 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 A.2 Maximum conducted output power Test Result TestMode Antenna Channel Result[dBm] Limit[dBm] Verdict BLE_2M Ant1 2402 -3.54 ≤30 PASS 2440 -3.61 ≤30 PASS 2480 -2.99 ≤30 PASS Page 6 of 24 FCC ID: 2BB2O-NR404 Report No.: LCSA071023069EA 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 BLE_2M_Ant1_2402 BLE_2M_Ant1_2440 BLE_2M_Ant1_2480 Page 7 of 24 FCC ID: 2BB2O-NR404 Report No.: LCSA071023069EA 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 Page 8 of 24 FCC ID: 2BB2O-NR404 Report No.: LCSA071023069EA 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 A.3 Maximum power spectral density Test Result TestMode Antenna Channel Result[dBm/3kHz] Limit[dBm/3kHz] Verdict BLE_2M Ant1 2402 -22.98 ≤8.00 PASS 2440 -23.09 ≤8.00 PASS 2480 -22.5 ≤8.00 PASS Page 9 of 24 FCC ID: 2BB2O-NR404 Report No.: LCSA071023069EA 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 BLE_2M_Ant1_2402 BLE_2M_Ant1_2440 BLE_2M_Ant1_2480 Page 10 of 24 FCC ID: 2BB2O-NR404 Report No.: LCSA071023069EA 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 Page 11 of 24 FCC ID: 2BB2O-NR404 Report No.: LCSA071023069EA 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 A.4 Band edge measurements Test Result TestMode Antenna ChName Channel RefLevel[dBm] Result[dBm] Limit[dBm] Verdict BLE_2M Ant1 Low 2402 -6.84 -38.6 ≤-26.84 PASS High 2480 -4.25 -48.79 ≤-24.25 PASS Page 12 of 24 FCC ID: 2BB2O-NR404 Report No.: LCSA071023069EA 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 BLE_2M_Ant1_Low_2402 BLE_2M_Ant1_High_2480 Page 13 of 24 FCC ID: 2BB2O-NR404 Report No.: LCSA071023069EA 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 A.5 Conducted Spurious Emission Test Result TestMode Antenna Channel FreqRange [MHz] RefLevel [dBm] Result[dBm] Limit[dBm] Verdict BLE_2M Ant…

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Page 1 of 32 FCC ID:2BB2O-NR404 Report No.: LCSA071023069EA 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 Guangzhou NuanRong Technology Co., Ltd. Bluetooth controller Test Model: NR404 Prepared for : Guangzhou NuanRong Technology Co., Ltd. Address : Building 9, First Sanjiang Industrial Zone, Shitan Town, Zengcheng District, Guangzhou city, Guangdong Province, China 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 : July 11, 2023 Number of tested samples : 2 Sample No. : A071023069-1, A071023069-2 Serial number : Prototype Date of Test : July 11, 2023 ~ July 19, 2023 Date of Report : July 19, 2023 Page 2 of 32 FCC ID:2BB2O-NR404 Report No.: LCSA071023069EA 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. ................. : LCSA071023069EA Date of Issue .................................. : July 19, 2023 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 ......................... : Guangzhou NuanRong Technology Co., Ltd. Address .......................................... : Building 9, First Sanjiang Industrial Zone, Shitan Town, Zengcheng District, Guangzhou city, Guangdong Province, China 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. .......................... : Bluetooth controller Trade Mark ..................................... : N/A Test Model ...................................... : NR404 Ratings ........................................... : Input :DC 5V, 2000mA Result ............................................ : Positive Compiled by: Supervised by: Approved by: Kay Hu/ Administrator Cary Luo/ Technique principal Gavin Liang/ Manager Page 3 of 32 FCC ID:2BB2O-NR404 Report No.: LCSA071023069EA 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............................... : NR404 EUT......................................... : Bluetooth controller Applicant............................... : Guangzhou NuanRong Technology Co., Ltd. Address.................................. : Building 9, First Sanjiang Industrial Zone, Shitan Town, Zengcheng District, Guangzhou city, Guangdong Province, China Telephone............................... : / Fax.......................................... : / Manufacturer........................ : Guangzhou NuanRong Technology Co., Ltd. Address................................... : Building 9, First Sanjiang Industrial Zone, Shitan Town, Zengcheng District, Guangzhou city, Guangdong Province, China Telephone............................... : / Fax.......................................... : / Factory................................... : Guangzhou NuanRong Technology Co., Ltd. Address................................... : Building 9, First Sanjiang Industrial Zone, Shitan Town, Zengcheng District, Guangzhou city, Guangdong Province, China 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. : LCSA071023069EA July 19, 2023 Date of issue Page 4 of 32 FCC ID:2BB2O-NR404 Report No.: LCSA071023069EA 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 July 19, 2023 Initial Issue -- Page 5 of 32 FCC ID:2BB2O-NR404 Report No.: LCSA071023069EA Shenzhen LCS Compliance Testing Laboratory …

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