I18Z61354-EMC01_FCC_15B_Rev1

FCC ID: 2AQRMFXMC52401

Test Report

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FCCID_4070174

TEST REPORT No. I18Z61354-EMC01 for FOXX Development Inc. Smartphone MIRO Model Name: L590A FCC ID: 2AQRMFXMC52401 with Hardware Version: L590MB_V0.4 Software Version: R02.V04 Issued Date: 2018-11-09 Note: The test results in this test report relate only to the devices specified in this report. This report shall not be reproduced except in full without the written approval of CTTL. The report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the U.S.Government. Test Laboratory: CTTL, Telecommunication Technology Labs, CAICT No. 52, Huayuan North Road, Haidian District, Beijing, P. R. China 100191. Tel:+86(0)10-62304633-2512, Fax:+86(0)10-62304633-2504 Email: cttl_terminals@caict.ac.cn, website: www.caict.ac.cn ©Copyright. All rights reserved by TMC Beijing。 Page 1 of 20

No. I18Z61354-EMC01 Page2 of 20 REPORT HISTORY Report Number Revision Description Issue Date st I18Z61354-EMC01 Rev.0 1 edition 2018-11-01 I18Z61354-EMC01 Rev.1 Updated the Client information and 2018-11-09 product name ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page3 of 20 CONTENTS 1. TEST LABORATORY ............................................................................................................... 4 1.1. TESTING LOCATION ........................................................................................................... 4 1.2. TESTING ENVIRONMENT ................................................................................................... 4 1.3. PROJECT DATA ................................................................................................................... 4 1.4. SIGNATURE .......................................................................................................................... 4 2. CLIENT INFORMATION ........................................................................................................... 5 2.1. APPLICANT INFORMATION ................................................................................................ 5 2.2. MANUFACTURER INFORMATION ...................................................................................... 5 3. EQUIPMENT UNDER TEST (EUT) AND ANCILLARY EQUIPMENT (AE) ............................ 6 3.1. ABOUT EUT .......................................................................................................................... 6 3.2. INTERNAL IDENTIFICATION OF EUT USED DURING THE TEST ................................... 6 3.3. INTERNAL IDENTIFICATION OF AE USED DURING THE TEST...................................... 6 3.4. EUT SET-UPS ....................................................................................................................... 7 4. REFERENCE DOCUMENTS .................................................................................................... 8 4.1. REFERENCE DOCUMENTS FOR TESTING....................................................................... 8 5. LABORATORY ENVIRONMENT.............................................................................................. 9 6. SUMMARY OF TEST RESULTS ............................................................................................ 10 7. TEST EQUIPMENTS UTILIZED ............................................................................................. 11 ANNEX A: MEASUREMENT RESULTS ....................................................................................... 12 ANNEX B: PERSONS INVOLVED IN THIS TESTING ................................................................. 20 ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page4 of 20 1. Test Laboratory 1.1. Testing Location Location: CTTL (huayuan North Road) Address: No. 52, Huayuan North Road, Haidian District, Beijing, P. R. China 100191 1.2. Testing Environment Normal Temperature: 15-35oC Relative Humidity: 20-75% 1.3. Project data Testing Start Date: 2018-09-11 Testing End Date: 2018-11-01 1.4. Signature Li Yan (Prepared this test report) Zhang Ying (Reviewed this test report) Liu Baodian Deputy Director of the laboratory (Approved this test report) ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page5 of 20 2. Client Information 2.1. Applicant Information Company Name: FOXX Development Inc. Address /Post: 101 E. Park Blvd., Plano, TX 75074, United States Contact Person: Yi Zhang Contact Email ethanzhang@foxxusa.com Telephone: +1 855-585-3699 Fax: +1 855-515-3699 2.2. Manufacturer Information Company Name: FOXX Development Inc. Address /Post: 101 E. Park Blvd., Plano, TX 75074, United States Contact Person: Yi Zhang Contact Email ethanzhang@foxxusa.com Telephone: +1 855-585-3699 Fax: +1 855-515-3699 ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page6 of 20 3. Equipment Under Test (EUT) and Ancillary Equipment (AE) 3.1. About EUT Description Smartphone MIRO Model Name L590A FCC ID 2AQRMFXMC52401 Extreme vol. Limits 3.5VDC to 4.4VDC (nominal: 3.85VDC) Note: Components list, please refer to documents of the manufacturer; it is also included in the original test record of CTTL, Telecommunication Technology Labs, CAICT. 3.2. Internal Identification of EUT used during the test EUT ID* SN or IMEI HW Version SW Version EUT1 015271000009043 L590MB_V0.4 R02.V04 *EUT ID: is used to identify the test sample in the lab internally. 3.3. Internal Identification of AE used during the test AE ID* Description SN Remarks AE1 Battery / / AE2 Charger / / AE3 USB Cable / / AE4 Headset / / AE1 Model / Manufacturer DONGGUAN DRN NEW ENERGY CO., LTD Capacitance 2450mAh Nominal voltage 3.85V AE2 Model A18A-050100U-US2 Manufacturer Dongguan Aohai Technology Co.,Ltd Length of cable / AE3 Model / Manufacturer SHENZHEN KOAR ELECTRCS CO.,LTD. Length of cable / AE4 Model / Manufacturer / Length of cable / *AE ID: is used to identify the test sample in the lab internally. Note: The USB cables are shielded. ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page7 of 20 3.4. EUT set-ups EUT set-up No. Combination of EUT and AE Remarks Set.1 EUT1+ AE1+ AE2+ AE3+ AE4 Charger mode+FM Set.2 EUT1+ AE1+ AE3 USB mode+MP3+GPS ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page8 of 20 4. Reference Documents 4.1. Reference Documents for testing The following documents listed in this section are referred for testing. Reference Title Version FCC Part 15, Subpart B Radio frequency devices - Unintentional Radiators 2016 ANSI C63.4 American National Standard for 2014 Methods of Measurement of Radio- Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz Note: The test methods have no deviation with standards. ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page9 of 20 5. LABORATORY ENVIRONMENT Semi-anechoic chamber SAC-1 (23meters×17meters×10meters) did not exceed following limits along the EMC testing: Temperature Min. = 15 ℃, Max. = 35 ℃ Relative humidity Min. = 15 %, Max. = 75 % Shielding effectiveness 0.014MHz-1MHz, >60dB; 1MHz - 1000MHz, >90dB. Electrical insulation > 2 MΩ Ground system resistance <4 Ω Normalised site attenuation (NSA) < ±4 dB, 10 m distance Site voltage standing-wave ratio (SVSWR) Between 0 and 6 dB, from 1GHz to 6GHz Uniformity of field strength Between 0 and 6 dB, from 80 to 3000 MHz Semi-anechoic chamber SAC-2 (10meters×6.7meters×6.1meters) did not exceed following limits along the EMC testing: Temperature Min. = 15 ℃, Max. = 35 ℃ Relative humidity Min. = 15 %, Max. = 75 % 0.014MHz - 1MHz, >60dB; Shielding effectiveness 1MHz - 1000MHz, >90dB. Electrical insulation > 2 MΩ Ground system resistance <4 Ω Normalised site attenuation (NSA) < ± 4 dB, 3m distance, from 30 to 1000 MHz Site voltage standing-wave ratio (SVSWR) Between 0 and 6 dB, from 1GHz to 18GHz Uniformity of field strength Between 0 and 6 dB, from 80 to 3000 MHz Shielded room did not exceed following limits along the EMC testing: Temperature Min. = 15 ℃, Max. = 35 ℃ Relative humidity Min. = 20 %, Max. = 75 % Shielding effectiveness 0.014MHz-1MHz, >60dB; 1MHz－1000MHz, >90dB. Electrical insulation > 2 MΩ Ground system resistance <4 Ω ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page10 of 20 6. SUMMARY OF TEST RESULTS Abbreviations used in this clause: P Pass Verdict Column NA Not applicable F Fail Clause in Section in Test Items Test Name Verdict FCC rules this report Location Radiated CTTL(huayuan 1 15.109(a) A.1 P Emission North Road) Conducted CTTL(huayuan 2 15.107(a) A.2 P Emission North Road) ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page11 of 20 7. Test Equipments Utilized SERIES CAL DUE CALIBRATI NO. Description TYPE MANUFACTURE DATE ON NUMBER INTERVAL 1 Test Receiver ESU26 100235 R&S 2019-03-31 1 year Universal Radio 2 Communication CMW500 143008 R&S 2018-12-26 1 year Tester 3 Test Receiver ESCI 3 100344 R&S 2019-02-28 1 year Universal Radio 4 Communication CMW500 116588 R&S 2018-11-26 1 year Tester 5 LISN ENV216 101200 R&S 2019-04-15 1 year 6 EMI Antenna VULB9163 9163-302 Schwarzbeck 2020-02-27 3 years 7 EMI Antenna 3115 00167250 ETS-Lindgren 2020-05-21 3 years 8 Signal Generator SMT06 831285/005 R&S 2019-04-04 1 years 9 PC OPTIPLEX 380 2X1YV2X DELL N/A N/A 10 Printer P1606dn VNC3L52122 HP N/A N/A CN0RH659658 11 Keyboard L100 DELL N/A N/A 907ATOI40 12 Mouse M-UAE119 LZ935220ZRC Lenovo N/A N/A Test Item Test Software and Version Software Vendor Radiated Continuous Emission EMC32 V9.01 R&S Conducted Emission EMC32 V8.52.0 R&S ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page12 of 20 ANNEX A: MEASUREMENT RESULTS A.1 Radiated Emission Reference FCC: CFR Part 15.109(a). A.1.1 Method of measurement The field strength of radiated emissions from the unintentional radiator (USB mode of MS and charging mode of MS) at distances of 10 meters(for 30MHz-1GHz) and 3 meters (for above 1GHz) is tested. Tested in accordance with the procedures of ANSI C63.4 – 2014, section 8.3. The EUT was placed on a non-conductive table. The measurement antenna was placed at a distance of 3/10 meters from the EUT. During the tests, the antenna height and the EUT azimuth were varied in order to identify the maximum level of emissions from the EUT. This maximization process was repeated with the EUT positioned in each of its three orthogonal orientations. A.1.2 EUT Operating Mode: The MS is operating in the USB mode and charging mode. During the test MS is connected to a PC via a USB cable in the case of USB mode and is connected to a charger in the case of charging mode. During the charging mode the FM application is started up. During the USB mode The EUT is keeping on playing MP3 and the GNSS application is started up. The model of the PC is DELL OPTIPLEX 380, and the serial number of the PC is 2X1YV2X. The software is used to let the PC keep on copying data to MS, reading and erasing the data after copy action was finished. Note：I/O information：Printer – USB, Mouse – PS/2, Keyboard – USB. A.1.3 Measurement Limit Frequency range Field strength limit (µV/m) (MHz) Quasi-peak Average Peak 30-88 100 88-216 150 216-960 200 960-1000 500 >1000 500 5000 Note: the above limit is for 3 meters test distance. 10 meters’ limit is got by converting. A.1.4 Test Condition Frequency range (MHz) RBW/VBW Sweep Time (s) Detector 30-1000 120kHz (IF Bandwidth) 5 Peak/Quasi-peak Above 1000 1MHz/1MHz 15 Peak, Average ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page13 of 20 A.1.5 Measurement Results A "reference path loss" is established and the ARpl is the attenuation of “reference path loss”. It includes the antenna factor of receive antenna and the path loss. The measurement results are obtained as described below: Result = PMea + ARpl = PMea + GA + GPL Where GA: Antenna factor of receive antenna GPL: Path Loss PMea: Measurement result on receiver. Measurement uncertainty (worst case): 5.44dB, k=2. Measurement results for Set.1: Charging Mode/Average detector Frequency(MHz) Result(dBµV/m) GPL (dB) GA (dB/m) PMea(dBµV) Polarity 17950.700 40.4 -17.7 45.6 12.500 H 17958.633 40.3 -17.7 45.6 12.400 H 17985.833 40.2 -17.7 45.6 12.300 V 17952.967 40.2 -17.7 45.6 12.300 H 17969.967 40.2 -17.7 45.6 12.300 H 17974.500 40.1 -17.7 45.6 12.200 H Charging Mode/Peak detector Frequency(MHz) Result(dBµV/m) GPL (dB) GA (dB/m) PMea(dBµV) Polarity 17963.733 52.5 -17.7 45.6 24.600 H 17939.367 51.9 -17.7 45.6 24.000 H 17978.467 51.8 -17.7 45.6 23.900 V 17962.600 51.6 -17.7 45.6 23.700 H 17984.700 51.5 -17.7 45.6 23.600 H 17953.533 51.4 -17.7 45.6 23.500 H ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page14 of 20 Measurement results for Set.2: USB Mode/Average detector Frequency(MHz) Result(dBµV/m) GPL (dB) GA (dB/m) PMea(dBµV) Polarity 17973.367 39.4 -17.7 45.6 11.500 H 17972.800 39.2 -17.7 45.6 11.300 H 17942.200 39.0 -17.7 45.6 11.100 V 17962.033 39.0 -17.7 45.6 11.100 H 17972.233 39.0 -17.7 45.6 11.100 H 17962.600 39.0 -17.7 45.6 11.100 H USB Mode/Peak detector Frequency(MHz) Result(dBµV/m) GPL (dB) GA (dB/m) PMea(dBµV) Polarity 17934.267 51.5 -17.7 45.6 23.600 H 17998.867 50.5 -17.7 45.6 22.600 H 17945.600 50.5 -17.7 45.6 22.600 V 17892.333 50.4 -18.5 45.6 23.300 H 17964.300 50.4 -17.7 45.6 22.500 H 17963.167 50.3 -17.7 45.6 22.400 H Note: The measurement results of Set.1, Set.2 showed here are worst cases of the combinations of different batteries and USB cables. ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page15 of 20 Charging Mode+FM, Set.1 Full Spectrum 50 45 FCC PART15_QP_10m 40 98.094000 MHz 27.851 dBµV/m 35 Level in dBµV/m 30 25 20 15 10 5 30M 50 60 80 100M 200 300 400 500 800 1G Frequency in Hz Figure A.1 Radiated Emission from 30MHz to 1GHz Note: the spike（98MHz）is coming from FM signal source. Final_Result Frequency QuasiPeak Limit Margin Meas. Time Bandwidth Height Pol Azimuth (MHz) (dBµV/m) (dBµV/m) (dB) (ms) (kHz) (cm) (deg) 32.249000 20.30 30.00 9.70 1000.0 120.000 292.0 V 300.0 36.397000 22.83 30.00 7.17 1000.0 120.000 113.0 V -27.0 37.201000 23.81 30.00 6.19 1000.0 120.000 211.0 V 30.0 39.386000 19.96 30.00 10.04 1000.0 120.000 105.0 V 269.0 41.594000 17.30 30.00 12.70 1000.0 120.000 289.0 V -28.0 42.943000 16.90 30.00 13.10 1000.0 120.000 202.0 V 10.0 Full Spectrum 80 FCC PART 15 _PK 70 60 FCC PART 15_AVG Level in dBµV/m 50 40 30 20 10 1G 2G 3G 4G 5G 6 8 10G 18G Frequency in Hz Figure A.2 Radiated Emission from 1GHz to 18GHz ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page16 of 20 USB Mode+MP3+GNSS, Set.2 Full Spectrum 60 55 50 45 FCC PART15_QP_10m 40 Level in dBµV/m 35 30 25 20 15 10 5 0 30M 50 60 80 100M 200 300 400 500 800 1G Frequency in Hz Figure A.3 Radiated Emission from 30MHz to 1GHz Full Spectrum 80 FCC PART 15 _PK 70 60 FCC PART 15_AVG Level in dBµV/m 50 40 30 20 10 1G 2G 3G 4G 5G 6 8 10G 18G Frequency in Hz Figure A.4 Radiated Emission from 1GHz to 18GHz ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page17 of 20 A.2 Conducted Emission Reference FCC: CFR Part 15.107(a). A.2.1 Method of measurement For equipment that is designed to be connected to the public utility (AC) power line, the radio frequency voltage that is conducted back onto the AC power line on any frequency or frequencies within the band 150 kHz to 30 MHz shall not exceed the limits. Tested in accordance with the procedures of ANSI C63.4 – 2014, section 7.3. A.2.2 EUT Operating Mode The MS is operating in the USB mode and charging mode. During the test MS is connected to a PC via a USB cable in the case of USB mode and is connected to a charger in the case of charging mode. During the charging mode the FM application is started up. During the USB mode The EUT is keeping on playing MP3 and the GNSS application is started up. The model of the PC is DELL OPTIPLEX 380, and the serial number of the PC is 2X1YV2X. The software is used to let the PC keep on copying data to MS, reading and erasing the data after copy action was finished. Note：I/O information：Printer – USB, Mouse – PS/2, Keyboard – USB. A.2.3 Measurement Limit Frequency of emission (MHz) Conducted limit (dBµV) Quasi-peak Average 0.15-0.5 66 to 56* 56 to 46* 0.5-5 56 46 5-30 60 50 *Decreases with the logarithm of the frequency A.2.4 Test Condition in charging mode Voltage（V） Frequency（Hz） 120 60 RBW/IF bandwidth Sweep Time(s) 9kHz 1 ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page18 of 20 A.2.5 Measurement Results Measurement uncertainty: U= 3.08 dB, k=2. Charging Mode+FM, Set.1 70 65 FCC Class B Voltage on Mains QP 60 55 FCC Class B Voltage on Mains AV 50 45 Level in dBµV 40 35 30 25 20 15 10 5 0 150k 300 400500 8001M 2M 3M 4M 5M 6 8 10M 20M 30M Frequency in Hz Figure A.5 Conducted Emission Final Result 1 Frequency QuasiPeak Meas. Time Bandwidth Line Corr. Margin Limit (MHz) (dBµV) (ms) (kHz) (dB) (dB) (dBµV) 0.217500 45.7 2000.0 9.000 L1 19.8 17.2 62.9 0.510000 42.8 2000.0 9.000 N 19.9 13.2 56.0 1.144500 44.0 2000.0 9.000 L1 19.6 12.0 56.0 1.275000 41.9 2000.0 9.000 L1 19.6 14.1 56.0 2.229000 39.1 2000.0 9.000 L1 19.7 16.9 56.0 4.695000 39.9 2000.0 9.000 L1 19.6 16.1 56.0 Final Result 2 Frequency Average Meas. Time Bandwidth Line Corr. Margin Limit (MHz) (dBµV) (ms) (kHz) (dB) (dB) (dBµV) 0.505500 39.1 2000.0 9.000 N 19.9 6.9 46.0 1.086000 34.9 2000.0 9.000 L1 19.6 11.1 46.0 1.275000 32.4 2000.0 9.000 L1 19.6 13.6 46.0 2.179500 30.9 2000.0 9.000 L1 19.7 15.1 46.0 4.780500 30.6 2000.0 9.000 L1 19.6 15.4 46.0 6.130500 34.6 2000.0 9.000 L1 19.7 15.4 50.0 Note: The measurement results showed here are worst cases of the combinations of different batteries and USB cables. ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page19 of 20 USB Mode+MP3+GNSS, Set.2 70 65 FCC Class B Voltage on Mains QP 60 55 FCC Class B Voltage on Mains AV 50 45 Level in dBµV 40 35 30 25 20 15 10 5 0 150k 300 400500 8001M 2M 3M 4M 5M 6 8 10M 20M 30M Frequency in Hz Figure A.6 Conducted Emission Final Result 1 Frequency QuasiPeak Meas. Time Bandwidth Line Corr. Margin Limit (MHz) (dBµV) (ms) (kHz) (dB) (dB) (dBµV) 0.429000 40.2 2000.0 9.000 L1 19.9 17.0 57.3 0.474000 44.1 2000.0 9.000 N 19.9 12.3 56.4 1.180500 40.2 2000.0 9.000 N 19.6 15.8 56.0 1.369500 41.3 2000.0 9.000 L1 19.6 14.7 56.0 2.134500 36.8 2000.0 9.000 N 19.6 19.2 56.0 4.447500 38.1 2000.0 9.000 N 19.7 17.9 56.0 Final Result 2 Frequency Average Meas. Time Bandwidth Line Corr. Margin Limit (MHz) (dBµV) (ms) (kHz) (dB) (dB) (dBµV) 0.429000 37.1 2000.0 9.000 L1 19.9 10.2 47.3 0.469500 40.8 2000.0 9.000 L1 19.9 5.8 46.5 0.856500 31.5 2000.0 9.000 N 19.8 14.5 46.0 1.360500 31.5 2000.0 9.000 L1 19.6 14.5 46.0 2.130000 27.3 2000.0 9.000 N 19.6 18.7 46.0 4.528500 30.7 2000.0 9.000 N 19.7 15.3 46.0 Note: The measurement results showed here are worst cases of the combinations of different batteries and USB cables. ©Copyright. All rights reserved by CTTL.

No. I18Z61354-EMC01 Page20 of 20 ANNEX B: Persons involved in this testing Test Item Tester Radiated Emission Wang Huan Conducted Emission Shi Suolan ***END OF REPORT*** ©Copyright. All rights reserved by CTTL.


Document Created: 2018-11-12 15:27:27
Document Modified: 2018-11-12 15:27:27
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