2BU48-THE90GEMThe90 Gem

Rev 1/26/2023 Stae Beauty, LLC 1109 Alfred Ave 94597, Walnut Creek, California, United States, 94597 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 05‐07‐2026 Ref: Attestation Statements Part 2.911(d)(7) Filing Grantee Code: 2BU48 FCC ID: 2BU48‐THE90GEM [Stae Beauty, LLC] (“the applicant”) certifies that, as of the date of the filing of the application, we designate ourselves as the U.S. agent for service of process. Designated U.S. Agent Information: FRN: 0038135562 Name: Stae Beauty, LLC Address: 1109 Alfred Ave 94597, Walnut Creek, California, United States, 94597 Contact Person: Stacy Salvi Tel.: +1‐415‐637‐7857 Email: [email protected] Sincerely, [Stae Beauty, LLC] [Stacy Salvi]

Rev 1/26/2023 Stae Beauty, LLC 1109 Alfred Ave 94597, Walnut Creek, California, United States, 94597 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 05-07-2026 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BU48-THE90GEM [Stae Beauty, LLC] (“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. [Stae Beauty, LLC] (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, Stacy Salvi Rev 1/26/2023 Stae Beauty, LLC 1109 Alfred Ave 94597, Walnut Creek, California, United States, 94597 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 05-07-2026 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BU48-THE90GEM [Stae Beauty, LLC] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, Stacy Salvi

Stae Beauty, LLC 1109 Alfred Ave 94597, Walnut Creek, California, United States, 94597 Date: 05/07/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Request of Confidentiality FCC ID: 2BU48-THE90GEM 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, Stae Beauty, LLC 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. We are also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give Stae Beauty, LLC temporary confidentiality of commercially sensitive information prior to product release. The requested permanent and Short-Term Confidential exhibits are listed as follows: PERMANENT & SHORT-TERM CONFIDENTIAL LIST Exhibit Description PERMANENT 1 Block Diagram 2 Schematics 3 Part Lists 4 Operation Description 5 Part Location SHORT-TERM 6 Internal Photos 7 External Photos 8 Test-Setup Photos 9 User Manual 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, Contact Name: Stacy Salvi Title: CEO

Stae Beauty, LLC 1109 Alfred Ave 94597, Walnut Creek, California, United States, 94597 Date: 05/07/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA 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: 2BU48-THE90GEM 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 affect as acts of our own. This authorization is valid until further written notice from Stae Beauty, LLC “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, Contact Name: Stacy Salvi Title: CEO

Sample Label and Location FCC ID: 2BU48-THE90GEMDue to the very small size of th e device, it is difficult to pl ace the label directly on the product. Therefore, the FCC ID labeling information will be placed on th e packaging and in the user manual Packaging Label

FCC ID: RF feature Mode Transmitting Frequency(MHz) Test separation distance (mm) ANT Gain (dBi) Max. power with tune-up tolerance (dBm) Note1,2 Max. power with tune-up tolerance (mW) Power thresholds SAR test exclusion thresholds Bluetooth LE 1, 2Mbps 2 402.00 5.0 -8.00 -11.50 0.070 8 0.02 3.00 Note1. Conclusion : = [ ( 0.0708mW / 5mm ) ] X [ √2.402GHz ] = 0.02Note. The calculation result was rounded to two decimal place f or comparison. 2BU48-THE90GEM Please refer to the operation description for max tune-up power . Standalone SAR test exclusion considerations SAR evaluation for general popul ation exposure conditions by me asurement or numerical simulation is not required KDB 447498 D01 clause 4.3.1 Step 1) SAR test exclusion thresho lds for 100MHz to 6GHz at test separation distances ≤ 50 mm [ ( max. power of channel, inclu ding 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

Report No.: DRTFCC2605-0054 FCC ID: 2BU48-THE90GEM 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(07)250909 Pages: 2 / 60 Test Report Version Test Report No. Date Description Revised by Reviewed by DRTFCC2605-0054 May, 08. 2026 Initial issue JaeHun Yun JaeJin Lee Report No.: DRTFCC2605-0054 FCC ID: 2BU48-THE90GEM 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(07)250909 Pages: 3 / 60 Table of Contents 1. General Information .................................................................................... 4 1.1. Description of EUT .......................................................................................................... 4 1.2. Support Equipment ......................................................................................................... 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.............................................................................................. 8 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 ............................................................................................................. 15 5.2.1. Test Setup .................................................................................................................. 15 5.2.2. Test Procedures ........................................................................................................ 15 5.2.3. Test Results ............................................................................................................... 16 5.3. Power Spectral Density ................................................................................................. 21 5.3.1. Test Setup .................................................................................................................. 21 5.3.2. Test Procedures ........................................................................................................ 21 5.3.3. Test Results ............................................................................................................... 21 5.4. Unwanted Emissions (Conducted) .............................................................................. 26 5.4.1. Test Setup .................................................................................................................. 26 5.4.2. Test Procedures ........................................................................................................ 26 5.4.3. Test Results ............................................................................................................... 27 5.5. Unwanted Emissions (Radiated) .................................................................................. 43 5.5.1. Test Setup .................................................................................................................. 44 5.5.2. Test Procedures ........................................................................................................ 44 5.5.3. Test Results ............................................................................................................... 46 5.6. AC Power-Line Conducted Emissions ........................................................................ 49 5.6.1. Test Setup .................................................................................................................. 49 5.6.2. Test Procedures ........................................................................................................ 49 5.6.3. Test Results ............................................................................................................... 49 APPENDIX I .................................................................................................... 52 APPENDIX II ................................................................................................... 53 APPENDIX III ..............................................................................…

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Approval Sheet STAE BLE ANTENNA REV.A Page 1 of 10 Product Name Internal Embedded Antenna Model/Bandwidth STAE / BLE Antenna Type Stainless steel Material SUS301 1/2H / Ni plate Part No 3003000 Customer Code Customer Model Solution Supplier Kyocera AVX Components Gunpo R F M E Q A P M Engineer Approver Engineer Approve Engineer Approver JH Jang CH Ryu IJ Yi WS Lee GC Choi BD Choi 2026. 04. 29 2026 © COPYRIGHT Kyocera AVX Components Gunpo.CO.,Ltd. Approval Sheet Approval Sheet STAE BLE ANTENNA REV.A Page 2 of 10 .............................................................................................................................................................................................. 1 Technical Specification ......................................................................................................................................................3 Electrical specification ............................................................................................................................... 3 Product Specification ..................................................................................................................................... 3 Electrical Requirements ..............................................................................................................................................4 Standing Wave Ratio ......................................................................................................................................... 4 Pattern of Radiation ....................................................................................................................................... 4 Antenna Gain ....................................................................................................................................................... 4 Antenna Performance and Instrumentation Specifications ................................................................................5 Electrical characteristics Data ................................................................................................................. 5 IN Put Return Loss and V.S.W.R ........................................................................................................... 5 ANTENNA GAIN ............................................................................................................................................. 6 Radiation Pattern ..................................................................................................................................... 6 STAE BLE ANTENNA (XZ-plane) ................................................................................................................. 6 STAE BLE ANTENNA (YZ-plane) ................................................................................................................. 7 STAE BLE ANTENNA (XY-plane) ................................................................................................................. 7 PART LIST ............................................................................................................................................................... 8 Drawing ..................................................................................................................................................................... 9 Table of Contents Approval Sheet STAE BLE ANTENNA REV.A Page 3 of 10 Technical Specification Electrical specification Frequency Range ANT1 PRX 2400 MHz 2480 MHz V.S.W.R 2.520 1.638 Average Gain Ver -16.8 dBi -15.8 dBi Hor -17.8 dBi -17.7 dBi RF TEST Fixture V.S.W.R 3.0±0.5 3.0±0.5 Norminal impedance polarization 50Ω Linear Polarization Radiant pattern Omnidirectional * The center value of the JIG SPEC is the Master SPL value, not the absolute value, but the value that can change depending on the surrounding environment. Product Specification Connector SMT Type Dimension Refer to Drawing Operation Temp -40°C ~ +80°C LOT-NO Marking - Approval Sheet STAE BLE ANTENNA REV.A Page 4 of 10 Electrical Requirements Standing Wave Ratio The antenna shall meet the VSWR requirements specified in the electrical specification. Frequency Range BLE ANTENNA 2400 MHz 2480 MHz V.S.W.R (Voltage Standing Wave Ratio) 2.520 1.638 Pattern of Radiation The radiated pattern of this antenna shall have a no-orientation pattern in the vertical plane. Antenna Gain The set shall be assembled to test the Gain and efficiency of the antenna and shall be fully assembled and operated. It should be tested on the terminal. The antenna is tested by the H, E1, E2 plan in the free space of the echo-free room. It should be done. Antenna orientation shall be measured in the middle of the transfer and acceptance bands. Approval Sheet STAE BLE ANTENNA REV.A Page 5 of 10 Antenna Performance and Instrumentation Specifications Electrical characteristics Data IN Put Return Loss and V.S.W.R BLE ANTENNA Approval Sheet STAE BLE ANTENNA REV.A Page 6 of 10 ANTENNA GAIN Frequency Efficiency Average Gain Max Gain Ver Hor Total Ver Hor Total 2,400,000,000 Hz 3.8 % -16.8 dBi -17.8 dBi -14.2 dBi -11.6 dBi -12.0 dBi -9.1 dBi 2,410,000,000 Hz 4.6 % -15.9 dBi -16.9 dBi -13.4 dBi -10.8 dBi -11.1 dBi -8.3 dBi 2,420,000,000 Hz 4.9 % -15.6 dBi -16.7 dBi -13.1 dBi -10.5 dBi -10.7 dBi -8.2 dBi 2,430,000,000 Hz 5.4 % -15.2 dBi -16.3 dBi -12.7 dBi -10.1 dBi -10.2 dBi -8.0 dBi 2,440,000,000 Hz 5.4 % -15.1 dBi -16.4 dBi -12.7 dBi -10.0 dBi -10.2 dBi -8.3 dBi 2,450,000,000 Hz 5.5 % -15.0 dBi -16.4 dBi -12.6 dBi -9.8 dBi -10.2 dBi -8.3 dBi 2,460,000,000 Hz 5.1 % -15.2 dBi -16.8 dBi -12.9 dBi -10.0 dBi -10.5 dBi -8.7 dBi 2,470,000,000 Hz 4.7 % -15.5 dBi -17.2 dBi -13.3 dBi -10.3 dBi -10.9 dBi -8.9 dBi 2,480,000,000 Hz 4.4 % -15.8 dBi -17.7 dBi -13.6 dBi -10.5 dBi -11.5 dBi -9.1 dBi Radiation Pattern STAE BLE ANTENNA (XZ-plane) Approval Sheet STAE BLE ANTENNA REV.A Page 7 of 10 STAE BLE ANTENNA (YZ-plane) STAE BLE ANTENNA (XY-plane) Approval Sheet STAE BLE ANT…

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