2ASWWCORNX4Smart Phone

2021-04-25 Nemko Canada Inc 303 River Road Ottawa, Ontario, Canada K1V 1H2 Attn: Director of Certification Authority to Act as Agent On our behalf, I appoint Shenzhen Huatongwei International Inspection Co., Ltd./ 1/F, Bldg 3, Hongfa Hi-tech Industrial Park, Genyu Road, Tianliao, Gongming, Shenzhen, China / Hans Hu,. to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by Nemko Canada Inc, still resides with XINCHUANGXIN INTERNATIONAL CO.,LTD / ROOM 605 6/F, FA YUEN COMMERCIAL BUILDING, 75-77 FA YUEN STREET MONGKOK KL Agency agreement expiration date: Apr. 24, 2022 By: Lyra lv Signature Printed Title: sales On behalf of : XINCHUANGXIN INTERNATIONAL CO.,LTD Telephone: 18721759223

2021-04-25 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2ASWWCORNX4 Product Name: Smart Phone Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:  Schematics  Block diagram  Operation description  BOM  Tune up These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. By: Lyra lv Signature Printed Title: sales On behalf of : XINCHUANGXIN INTERNATIONAL CO.,LTD Telephone: 18721759223

Differences Declaration To whom concern, We company XINCHUANGXIN INTERNATIONAL CO. , LTD Here by declares: The produc t model(s) X4 Pro,X4 Lite,X4 Plus, X4 Max is the same PCB layout, electronic schematic and Antenna with X4,which tested in Shenzhen Huatongwei International Inspection Co., Ltd., the only differences between them are model names, others are same. YUEN STREET MONGKO K KL Te l : 18721759223 E-Mail: [email protected] Sincerely yours, Name (in print): Lyra Company name: XINCHUANGXIN INTERNATIONAL CO. , LTD Company address: ROOM 605 6/F, FA YUEN COMMERCIAL BUILDING, 75-77 FA

7.EXTERNAL AND INTERNAL PHOTOS OF THE EUT External photos of the EUT M odel:X4

Label & Location

Internal photos of the EUT M odel:X4

Page: 1 of 31 TEST REPORT Report No. ...................................... : CHTEW21040064 Report Verification: Project No.................................： SHT2103073001EW FCC ID ............................................. : 2ASWWCORNX4 Applicant’s name ........................... : XINCHUANGXIN INTERNATIONAL CO.,LTD Address ............................................. : ROOM 605 6/F, FA YUEN COMMERCIAL BUILDING, 75-77 FA YUEN STREET MONGKOK KL Test item description .................... : Smart Phone Trade Mark ....................................... : CORN Model/Type reference ....................... : X4 Listed Model(s) ................................. : X4 Pro, X4 Plus, X4 Max, X4 Lite Standard ......................................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of receipt of test sample..........: Mar. 24, 2021 Date of testing.............................: Mar. 25, 2021- Apr. 15, 2021 Date of issue...............................: Apr. 16, 2021 Result .................. ........................: PASS Compiled by ( Position+Printed name+Signature): File administrator Silvia Li Supervised by (Position+Printed name+Signature): Project Engineer Aaron Fang Approved by (Position+Printed name+Signature): RF Manager Hans Hu Testing Laboratory Name ............. : Shenzhen Huatongwei International Inspection Co., Ltd. Address ............................................. : 1/F, Bldg 3, Hongfa Hi-tech Industrial Park, Genyu Road, Tianliao, Gongming, Shenzhen, China Shenzhen Huatongwei International Inspection Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Huatongwei International Inspection Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Huatongwei International Inspection Co., 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. The test report merely correspond to the test sample. Report No.: CHTEW21040064 Page: 2 of 31 Issued: 2021-04-15 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) Contents 1. TEST S T AN D AR D S A N D R E P O R T V E R S I O N 3 1.1. Test Standards 3 1.2. Report version 3 2. TEST DESCRIPTION 4 3. SUMMARY 5 3.1. Client Information 5 3.2. Product Description 5 3.3. Radio Specification Description 5 3.4. Testing Laboratory Information 6 4. TEST CONFIGURATION 7 4.1. Test frequency list 7 4.2. Descriptions of Test mode 7 4.3. Test mode 7 4.4. Support unit used in test configuration and system 8 4.5. Testing environmental condition 8 4.6. Measurement uncertainty 8 4.7. Equipment Used during the Test 9 5. TEST CONDITIONS AND RESULTS 11 5.1. Antenna Requirement 11 5.2. AC Conducted Emission 12 5.3. Peak Output Power 15 5.4. 20 dB Bandwidth 16 5.5. 99% Occupied Bandwidth 17 5.6. Carrier Frequencies Separation 18 5.7. Hopping Channel Number 19 5.8. Dwell Time 20 5.9. Duty Cycle Correction Factor (DCCF) 21 5.10. Pseudorandom Frequency Hopping Sequence 22 5.11. Conducted Band edge and Spurious Emission 23 5.12. Radiated Band edge Emission 24 5.13. Radiated Spurious Emission 26 6. TEST SETUP PHOTOS 30 7. EXTERANAL AND INTERNAL PHOTOS 31 8. APPENDIX REPORT 31 Report No.: CHTEW21040064 Page: 3 of 31 Issued: 2021-04-15 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) 1. TEST STAND ARDS AND REPORT VERSION 1.1. Test Standards The tests were performed according to following standards: ‒ FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz ‒ ANSI C63.10:2013: American National Standard for Testing Unlicensed Wireless Devices ‒ KDB 558074 D01 15.247 Meas Guidance v05r02: Guidance for Compliance Measurements on Digital Transmission System, Frequency Hopping Spread Spectrum System, and Hybrid System Devices Operating under Section 15.247 of The FCC Rules 1.2. Report version Revision No. Date of issue Description N/A 2021-04-15 Original Report No.: CHTEW21040064 Page: 4 of 31 Issued: 2021-04-15 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) 2. TEST DESCRIPTION Report clause Test Items Standard Requirement Result 5.1 Antenna Requirement 15.203/15.247 (c) PASS 5.2 AC Conducted Emission 15.207 PASS 5.3 Peak Output Power 15.247 (b)(1) PASS 5.4 20 dB Bandwidth 15.247 (a)(1) PASS 5.5 99% Occupied Bandwidth - PASS *1 5.6 Carrier Frequency Separation 15.247 (a)(1) PASS 5.7 Hopping Channel Number 15.247 (a)(1) PASS 5.8 Dwell Time 15.247 (a)(1) PASS 5.9 Duty Cycle Correction Factor - PASS *1 5.10 Pseudorandom Frequency Hopping Sequence 15.247(b)(4) PASS 5.11 Conducted Band Edge and Spurious Emission 15.247(d)/15.205 PASS 5.12 Radiated Band Edge Emission 15.205/15.209 PASS 5.13 Radiated Spurious Emission 15.247(d)/15.205/15.209 PASS Note: ‒ The measurement uncertainty is not included in the test result. ‒ *1: No requirement on standard, only report these test data. Report No.: CHTEW21040064 Page: 5 of 31 Issued: 2021-04-15 Shenzhen Huatongwei International Inspection Co., Ltd. Report Template Version: V03 (2021-01) 3. SUMMARY 3.1. Client Information Applicant: XINCHUANGXIN INTERNATIONAL CO.,LTD Address: ROOM 605 6/F, FA YUEN COMMERCIAL BUILDING, 75-77 FA YUEN STREET MONGKOK KL Manufacturer: Shenzhen Chiteng Technology Co.,LTD Address: Second Floor,Area A, Building 4, Huiye Technology Workshop, Guanguang Road, Tangjia Community, Gongming Street, Guangming New District, Shenzhen, Guangdong 3.2. Product Description Name of EUT: Smart Phone Trade Mark: CORN Model No.: X4 Listed Model(s): X4 Pro, X4 Plus, X4 Max, X4 Lite Power supply: DC 3.7V Battery Information: DC 3.7V, 1500mAh Adapter Information: Model:CS001 Input: AC100-240V, 50/60Hz, 0.15A Output: 5.0Vdc, 1.0A Hardwar…

Text truncated - open the document above for the full version.

Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 1 of 41 APPENDIX REPORT Project No. SHT2103073001EW Radio Specification Bluetooth EDR Test sample No. YPHT21030730004 Model No. X4 Start test date 2021-04-01 Finish date 2021-04-01 Temperature 24.5°C Humidity 46% Test Engineer Hailey Chen Auditor Appendix clause Test item Result A Peak Output Power PASS B 20 dB Bandwidth PASS C 99% Occupied Bandwidth PASS D Carrier Frequencies Separation PASS E Hopping Channel Number PASS F Dwell Time PASS G Duty Cycle Correction Factor (DCCF) PASS H Band edge and Spurious Emissions(coducted) PASS Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 2 of 41 Appendix A：Peak Output Power Modulation type Channel Output power (dBm) Average Output power (dBm) Limit (dBm) Result GFSK 00 4.51 4.50 ≤ 30.00 Pass 39 3.60 3.59 78 2.18 2.16 π/4DQPSK 00 6.09 5.40 ≤ 21.00 Pass 39 5.47 4.84 78 4.68 3.97 8DPSK 00 6.45 5.75 ≤ 21.00 Pass 39 5.61 4.86 78 4.41 3.62 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 3 of 41 Modulation Type: GFSK CH00 Date: 1.APR.2021 09:29:48 CH39 Date: 1.APR.2021 09:37:09 CH78 Date: 1.APR.2021 09:40:36 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 4 of 41 Modulation Type: π/4DQPSK CH00 Date: 1.APR.2021 09:51:37 CH39 Date: 1.APR.2021 09:55:29 CH78 Date: 1.APR.2021 10:01:48 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 5 of 41 Modulation Type: 8DPSK CH00 Date: 1.APR.2021 10:16:22 CH39 Date: 1.APR.2021 10:19:03 CH78 Date: 1.APR.2021 10:23:47 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 6 of 41 Appendix B : 20 dB Bandwidth Modulation type Channel 20 dB Bandwidth (kHz) Limit (kHz) Result GFSK 00 925.00 - Pass 39 925.00 78 925.00 π/4DQPSK 00 1322.50 - Pass 39 1320.00 78 1320.00 8DPSK 00 1302.50 - Pass 39 1302.50 78 1302.50 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 7 of 41 Modulation Type: GFSK CH00 Date: 1.APR.2021 09:29:30 CH39 Date: 1.APR.2021 09:36:51 CH78 Date: 1.APR.2021 09:40:18 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 8 of 41 Modulation Type: π/4DQPSK CH00 Date: 1.APR.2021 09:51:19 CH39 Date: 1.APR.2021 09:55:11 CH78 Date: 1.APR.2021 10:01:30 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 9 of 41 Modulation Type: 8DPSK CH00 Date: 1.APR.2021 10:16:04 CH39 Date: 1.APR.2021 10:18:46 CH78 Date: 1.APR.2021 10:23:29 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 10 of 41 Appendix C：99% Occupied Bandwidth Modulation type Channel 99% Occupied Bandwidth (MHz) Limit (MHz) Result GFSK 00 0.84 - Pass 39 0.84 78 0.85 π/4DQPSK 00 1.18 - Pass 39 1.18 78 1.19 8DPSK 00 1.19 - Pass 39 1.18 78 1.19 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 11 of 41 Modulation Type: GFSK CH00 Date: 1.APR.2021 09:29:39 CH39 Date: 1.APR.2021 09:37:00 CH78 Date: 1.APR.2021 09:40:27 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 12 of 41 Modulation Type: π/4DQPSK CH00 Date: 1.APR.2021 09:51:28 CH39 Date: 1.APR.2021 09:55:20 CH78 Date: 1.APR.2021 10:01:38 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 13 of 41 Modulation Type: 8DPSK CH00 Date: 1.APR.2021 10:16:13 CH39 Date: 1.APR.2021 10:18:54 CH78 Date: 1.APR.2021 10:23:37 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 14 of 41 Appendix D：Carrier Frequencies Separation Modulation type Channel Carrier Frequencies Separation (MHz) Limit (kHz) * Result GFSK 39 1.00 ≥925.00 Pass π/4DQPSK 39 1.00 ≥881.67 Pass 8DPSK 39 1.00 ≥868.33 Pass Note: *: GFSK limit = The maximum 20 dB Bandwidth for GFSK modulation on the appendix B. π/4DQPSK limit = 2/3 * The maximum 20 dB Bandwidth for π/4DQPSK modulation on the appendix B. 8DPSK limit = 2/3 * The maximum 20 dB Bandwidth for 8DPSK modulation on the appendix B Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 15 of 41 GFSK Date: 1.APR.2021 09:43:28 π/4DQPSK Date: 1.APR.2021 10:06:38 8DPSK Date: 1.APR.2021 10:27:08 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 16 of 41 Appendix E：Hopping Channel Number Modulation type Channel number Limit Result GFSK 79 ≥15.00 Pass π/4DQPSK 79 8DPSK 79 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 17 of 41 GFSK Date: 1.APR.2021 09:44:48 π/4DQPSK Date: 1.APR.2021 10:09:40 8DPSK Date: 1.APR.2021 10:31:06 Project No.: SHT2103073001EW Radio Specification: Bluetooth EDR Shenzhen Huatongwei International Inspection Co., Ltd. Appendix report page: 18 of 41 Appendix F：Dwell Time Modulation type Packet Burst Width [ms] Total Hops[hop*ch] Dwell time (Second) Limit (Second) Result GFSK DH1 0.39 314 0.12 ≤ 0.40 Pass DH3 1.65 163 0.27 DH5 2.90 110 0.32 …

Text truncated - open the document above for the full version.

6.TEST SETUP PHOTOS Radiated Emission M odel:X4 AC Conducted Emission