2BA9F-TWICEO3VTWICE CANDYBONG INFINITY

Rev 1/26/2023 COCOAENT 65, Bongeunsa-ro 18-gil, Gangnam-gu, SEOUL, South Korea 06128 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 17/07/2023 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BA9F-TWICEO3V COCOAENT (“the applicant”) certifies 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. Sincerely, JUNG, HAESUK /Representative /COCOAENT Rev 1/26/2023 COCOAENT 65, Bongeunsa-ro 18-gil, Gangnam-gu, SEOUL, South Korea 06128 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 17/07/2023 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BA9F-TWICEO3V COCOAENT (“the applicant”) certifies 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. Sincerely, JUNG, HAESUK /Representative /COCOAENT

Rev 1/26/2023 COCOAENT 65, Bongeunsa-ro 18-gil, Gangnam-gu, SEOUL, South Korea 06128 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 07/17/2023 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID or Grantee Code: 2BA9F-TWICEO3V FRN: 0033789942 COCOAENT (“the applicant”) certifies that, as of the date of the filing of the application, Merch Traffic, LLC is our designated U.S. agent for service of process for the above referenced FCC ID. [COCOAENT] accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Merch Traffic, LLC accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Name: Merch Traffic, LLC Address: 430 W 15th Street, 7th floor NY NY 10011 Contact Person: Pete D Auria Email: [email protected] Sincerely, COCOAENT Merch Traffic, LLC JUNG, HAESUK Pete D Auria

Rev 1/26/2023 COCOAENT 65, Bongeunsa-ro 18-gil, Gangnam-gu, SEOUL, South Korea 06128 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 07/13/2023 Letter of Authorization We, the undersigned, hereby authorize Geunki Son of Dt&C Co., Ltd. to act on our behalf in all manners relating to application for equipment authorization for FCC ID: 2BA9F-TWICEO3V including signing of all documents relating to these matters. Any and all acts carried out by Geunki Son of Dt&C Co., Ltd. on our behalf shall have the same effect as acts of our own. This authorization is valid until further written notice from Grantee. “I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a).” Sincerely, JUNG HAESUK /Representative /COCOAENT

Rev 1/26/2023 COCOAENT 65, Bongeunsa-ro 18-gil, Gangnam-gu, SEOUL, South Korea 06128 Federal Communications Commission Date: 07/13/2023 Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Request of Confidentiality FCC ID: 2BA9F-TWICEO3V To Whom It may Concern: Pursuant to Sections 0.457 and 0.459 of the Commission`s Rules(CFR 47), and Section 552 (b) (4) of the Freedom of Information Act, we, COCOAENT, hereby requests confidentiality and treatment of certain information accompanying this application. The materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The requested permanent exhibits are listed as follows: PERMANENT CONFIDENTIAL LIST Exhibit Description PERMANENT 1 Block Diagram 2 Schematics 3 Part Lists 4 Operation Description The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be public before the date of the Grant for this application. Sincerely, JUNG HAESUK /Representative /COCOAENT

FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. View 1 FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. View 2 FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. View 3

256.71 105.00 48.77 FCC ID : 2BA9F-TWICEO3V MADE IN CHINA FCC ID : 2BA9F-TWICEO3V MADE IN CHINA

FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. View 1 FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. View 2 Antenna FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. View 3 FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. View 4 FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. View 5

FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. View 6 FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. View 7 FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. View 8 <Module>

FCC ID: RF featureMode Transmitting Frequency(MHz) Test separation distance (mm) ANT Gain (dBi) Max. power with tune-up tolerance (dBm) Note1 Max. power with tune-up tolerance (mW) Power thresholds SAR test exclusion thresholds BLE1 Mbps2 480.005.0-2.00-9.000.125 90.043.00 Note1. Conclusion : = [ ( 0.1259mW / 5mm ) ] X [ √2.48GHz ] = 0.04 Note. The calculation result was rounded to two decimal place for comparison. 2BA9F-TWICEO3V Please refet to the operation description for Max Tune-up power. Standalone SAR test exclusion considerations SAR evaluation for general population exposure conditions by measurement or numerical simulation is not required KDB 447498 D01 clause 4.3.1 Step 1) SAR test exclusion thresholds for 100MHz to 6GHz at test separation distances ≤ 50 mm [ ( max. power of channel, including tune-up tolerance, mW ) / ( min. test separation distance, mm ) ] · [ √f(GHz) ] ≤ 3.0 for 1g SAR and ≤ 7.5 for 10g extremity SAR Sample Calculation

Model : PATTRN ANTENA 2020 . . 2020 . . 2020 . . 2020 . . 2020 . . Cocoaent SPECIFICATIONS FOR APPROVAL R&DQA/QC Customers CHECKAPPROVALCHECKAPPROVAL OFFICIALLIGHTSTICKTWICE Document Revision Management VersionDateDescripitionReason for change 1.Product Information 1.1 Feature 1.2 Electrical Specifications 1.3 Pattern Specifications matching point : L3 3pF 2↓ RADIATION PATTERNOmni-directional POLARIZATIONLinear PART NUMBERPattern ANT ANTENNA TYPEPCB Pattern Antenna APPLICATIONSBLE Frquency Rangel(TX)2400MHz~2485MHz Frquency Rangel(RX) V.S.W.R IMPEDANCE50Ω 2400MHz~2485MHz RX 2400MHz2485MHz 2↓2↓ TX 2400MHz2485MHz 2↓ L: 21.1mm W:0.5mm 1.3 Matching Network 1.4 Electrical Characteristics 1.4.1 VSWR & SMITH CHART 1.4.2 Performance

Report No.: DRTFCC2306-0072 FCC ID: 2BA9F-TWICEO3V This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-238(06)210316 Pages: 2 / 38 Test Report Version Test Report No. Date Description Revised by Reviewed by DRTFCC2306-0072 Jun, 22. 2023 Initial issue SeungMin Gil JaeJin Lee Report No.: DRTFCC2306-0072 FCC ID: 2BA9F-TWICEO3V This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-238(06)210316 Pages: 3 / 38 Table of Contents 1. General Information .................................................................................... 4 1.1. Description of EUT .......................................................................................................... 4 1.2. Declaration by the applicant / manufacturer ................................................................ 4 1.3. Testing Laboratory .......................................................................................................... 5 1.4. Testing Environment ....................................................................................................... 5 1.5. Measurement Uncertainty............................................................................................... 5 1.6. Test Equipment List ........................................................................................................ 6 2. Test Methodology ........................................................................................ 7 2.1. EUT Configuration ........................................................................................................... 7 2.2. EUT Exercise .................................................................................................................... 7 2.3. General Test Procedures ................................................................................................ 7 2.4. Instrument Calibration .................................................................................................... 7 2.5. Description of Test Modes.............................................................................................. 7 3. Antenna Requirements ............................................................................... 8 4. Summary of Test Results ........................................................................... 9 5. Test Result ................................................................................................. 10 5.1. Maximum Peak Conducted Output Power .................................................................. 10 5.1.1. Test Setup .................................................................................................................. 10 5.1.2. Test Procedures ........................................................................................................ 10 5.1.3. Test Results ............................................................................................................... 10 5.2. 6 dB Bandwidth ............................................................................................................. 13 5.2.1. Test Setup .................................................................................................................. 13 5.2.2. Test Procedures ........................................................................................................ 13 5.2.3. Test Results ............................................................................................................... 13 5.3. Power Spectral Density ................................................................................................. 16 5.3.1. Test Setup .................................................................................................................. 16 5.3.2. Test Procedures ........................................................................................................ 16 5.3.3. Test Results ............................................................................................................... 16 5.4. Unwanted Emissions (Conducted) .............................................................................. 19 5.4.1. Test Setup .................................................................................................................. 19 5.4.2. Test Procedures ........................................................................................................ 19 5.4.3. Test Results ............................................................................................................... 20 5.5. Unwanted Emissions (Radiated) .................................................................................. 28 5.5.1. Test Setup .................................................................................................................. 30 5.5.2. Test Procedures ........................................................................................................ 30 5.5.3. Test Results ............................................................................................................... 31 5.6. AC Power-Line Conducted Emissions ........................................................................ 33 5.6.1. Test Setup .................................................................................................................. 33 5.6.2. Test Procedures ........................................................................................................ 33 5.6.3. Test Results ............................................................................................................... 33 APPENDIX I .................................................................................................... 34 APPENDIX II ................................................................................................... 35 APPENDIX III ...........................................................................................…

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FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. Test Setup photographs EUT Position: X-axis EUT Position: Y-axis EUT Position: Z-axis FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. Test Setup Photo of Radiated Measurement (0.009 ~ 30MHz) FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. Test Setup Photo of Radiated Measurement (Below 1GHz) FCC ID: 2BA9F-TWICEO3V Copyright Ⓒ 2023, Dt&C Co., Ltd. Test Setup Photo of Radiated Measurement (Above 1GHz)