2BBPLPYHSTSPLTUMBLER WIRELESS SPEAKER

TRUSTSTONE GROUP, LLC 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: TRUSTSTONE GROUP, LLC Address: 1370 Broadway, 9th floor, New York, NY 10018, United States Product Name: TUMBLER WIRELESS SPEAKER FCC ID: 2BBPLPYHSTSPL Model(s): PYH-STSPL, PYH-STSPL-CRM, PYH-STSPL-BLK, PYH-STSPL-BRB 2.911(d)(5)(i) Equipment Type We, [TRUSTSTONE GROUP, LLC] (“the applicant”) certify that the equipment for which authorization is sought through certification is not:  Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules.  Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Name: Marc Faham Date: Jun. 24, 2024 Title: CEO Company name: TRUSTSTONE GROUP, LLC Signature: NOTE 1 “Covered List ”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

TRUSTSTONE GROUP, LLC 2.911 (d)(5)(ii) Applicant Attestation v1.3 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: TRUSTSTONE GROUP, LLC Address: 1370 Broadway, 9th floor, New York, NY 10018, United States Product Name: TUMBLER WIRELESS SPEAKER FCC ID: 2BBPLPYHSTSPL Model(s): PYH-STSPL, PYH-STSPL-CRM, PYH-STSPL-BLK, PYH-STSPL-BRB 2.911(d)(5)(ii) Applicant filing We, [TRUSTSTONE GROUP, LLC] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 , established pursuant to §1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: Marc Faham Date: Jun. 24, 2024 Title: CEO Company name: TRUSTSTONE GROUP, LLC Signature: NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List ”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

TRUSTSTONEGROUP,LLC 2.911(d)(7)USAAgentv1.3 Section2.911(d)(7)USA Agentfor Serviceof Process Company name: TRUSTSTONE GROUP, LLC Address: 1370 Broadway, 9th floor, New York, NY 10018, United States Product Name: TUMBLER WIRELESS SPEAKER FCC ID: 2BBPLPYHSTSPL Model(s): PYH-STSPL, PYH-STSPL-CRM, PYH-STSPL-BLK, PYH-STSPL-BRB 2.911(d)(7)USADesignatedAgentforServiceof Process We, [TRUSTSTONEGROUP,LLC ] (“the applicant”) designate[TRUSTSTONE GROUP,LLC ] NOTE1 for the purposeof acceptingserviceof processon behalfof the applicant. Applicantconsent:We Acknowledgeour consentto acceptserviceof processin the UnitedStatesfor mattersrelatedto the applicableequipment,and at the physicalU.S. addressand emailaddressof the designatedagentand acknowledgeour acceptanceof our obligationto maintainan agent for serviceof processin the United Statesfor no less than one year after either the granteehas permanentlyterminated all marketingand importationof the applicableequipmentwithinthe U.S., or the conclusionof any Commission-relatedadministrativeor judicialproceedinginvolving the equipment,whicheveris later. Agentobligation:We Acknowledgeour obligationto acceptserviceof processin the UnitedStatesfor mattersrelatedto the applicableequipmentat our physicalU.S. addressand email addressfor no less than one year after eitherthe granteehas permanentlyterminatedall marketingand importationof the applicableequipment within the U.S., or the conclusionof any Commission-relatedadministrativeor judicial proceedinginvolvingthe equipment,whicheveris later. TRUSTSTONEGROUP,LLC 2.911(d)(7)USAAgentv1.3 USA Agent Companyname:TRUSTSTONEGROUP, LLC Address: 1370 Broadway, 9th floor, New York, NY 10018, United States FCC RegistrationNumber(FRN): 0033900465 ContactNa me: Marc Faham TelephoneNo: 9175335333 Email:[email protected] Applicant Companyname:TRUSTSTONEGROUP, LLC Address: 1370 Broadway, 9th floor, New York, NY 10018, United States FCC RegistrationNumber(FRN): 0033900465 FCC GranteeCode:2BBPL ContactName:Marc Faham TelephoneNo: 9175335333 Email:[email protected] Signature: Title: CEO Signature: Title: CEO Date: Jun. 17, 2024Date: Jun. 17, 2024 NOTE1: An applicantlocatedin the UnitedStatesmay designateitself as the agent for service of process. Reference;FederalRegisterdocument2022-28263publishedon 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

TRUSTSTONE GROUP, LLC Agent Authorization Company: TRUSTSTONE GROUP, LLC Address: 1370 Broadway, 9th floor, New York, NY 10018, United States Product Name: TUMBLER WIRELESS SPEAKER Model Number(s): PYH-STSPL, PYH-STSPL-CRM, PYH-STSPL-BLK, PYH-STSPL-BRB Product Description: TUMBLER WIRELESS SPEAKER We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: Jun. 24, 2024 Name: Marc Faham Title: CEO Company: TRUSTSTONE GROUP, LLC

TRUSTSTONE GROUP, LLC Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jun. 24, 2024 Subject; Request for Confidentiality FCC ID: 2BBPLPYHSTSPL To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Marc Faham Title: CEO

TRUSTSTONE GROUP, LLC Model Difference Declaration To Whom It May Concern, We, TRUSTSTONE GROUP, LLC (TUMBLER WIRELESS SPEAKER); Trade Mark: XO POPPY, Model Number: PYH-STSPL, PYH-STSPL-CRM, PYH-STSPL-BLK, PYH-STSPL-BRB; All model’s the function, software and electric circuit are the same, only with a product color and model named different. Test sample model: PYH-STSPL. Please contact me if you have any question. Signature: Date: Jun. 24, 2024 Name: Marc Faham Title: CEO

FCC ID LABEL: Ca. 2cm x 4.5cm Label Location FCC ID: 2BBPLPYHSTSPL

FCC RF Exposure EUT Description: TUMBLER WIRELESS SPEAKER Model No.: PYH-STSPL FCC ID: 2BBPLPYHSTSPL 1. Limits According to KDB 447498 D01 General RF Exposure Guidance v06 The 1‐g and 10‐g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤50 mm are determined by: [(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: Result=P/D*√F F= the RF channel transmit frequency in GHz P= Maximum turn‐up power in mw D= Min. test separation distance in mm 2. Test Result of RF Exposure Evaluation Frequency (MHz) Output power (dBm) Tune Up Power (dBm) Max Tune Up power (dBm/mW) Min test separation distance (mm) ResultLimit (mW/cm 2 ) SAR Test Exclusion 2402 -0.48 -1±1(0) 1.00 5 0.31 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2406113045-E, antenna gain=1.7dBi Per KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine RF Exposure test exclusion. The test exclusion threshold is 0.31 which is ≤ 3, RF Exposure testing is not required. Note: Exclusion Thresholds Results=[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f (GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

Product specification Quick Reference Date All the technical data and information contained herein are subject to change without prior notice Antenna Layout &module on the systemboard AntennaGain Gain Table Antenna module on the system board Frequency2.45GHz *1 Ant. Port Input Pwr. (dBm)0 (Typ. BT class 2 output power) Tot. Rad. Pwr. (dBm)-2.3 (Input pwr – loss pwr) Peak EIRP(dBm)1.3 Directivity (dBi)1 (all direction antenna) Efficiency (dB)-2.3 (58.5%) Gain (dBi)1.(PeakGainXY-plane) Maximum Power (dBm)1.3 (XY-plane) Minimum Power (dBm)-4(XY-plane) Avg. Power (dBm)-0.5(XY-plane) Max/Min Ratio (dB)5.3(XY-plane) Max/Avg Ratio (dB)1.8(XY-plane) Min/Avg Ratio (dB)-3.5(XY-plane) Average Gain (dB)-0.5 (Avg Gain XY-plane) Unit in dBi @2.44GHz XY-planeXZ-planeYZ-planeEfficiency PeakAv g.Peak Avg.PeakAvg. Module Board 1.3-0.51.7-3.81.1-3.058.5% ReturnLoss The Environment of Antenna Radiation Pattern 3Dradiationpatterndiagram XY-plane XZ-plane YZ-plane

Page 1 of 48 Report No.: HK2406113045-E FCC Test Report Test Report On Behalf of TRUSTSTONE GROUP, LLC For TUMBLER WIRELESS SPEAKER Model No.: PYH-STSPL, PYH-STSPL-CRM, PYH-STSPL-BLK, PYH-STSPL-BRB FCC ID: 2BBPLPYHSTSPL Prepared For: TRUSTSTONE GROUP, LLC 1370 Broadway, 9th floor, New York, NY 10018, United States Prepared By: Shenzhen HUAK Testing Technology Co., Ltd. 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Date of Test: Jun. 11, 2024 ~ Jun. 17, 2024 Date of Report: Jun. 17, 2024 Report Number: HK2406113045-E Page 2 of 48 Report No.: HK2406113045-E Test Result Certification Applicant’s Name .................. : TRUSTSTONE GROUP, LLC Address .................................. : 1370 Broadway, 9th floor, New York, NY 10018, United States Manufacturer's Name ........... : TRUSTSTONE GROUP, LLC Address .................................. : 1370 Broadway, 9th floor, New York, NY 10018, United States Product Description Trade Mark ............................. : XO POPPY Product Name ........................... : TUMBLER WIRELESS SPEAKER Model and/or Type Reference...: PYH-STSPL, PYH-STSPL-CRM, PYH-STSPL-BLK, PYH-STSPL-BRB Standards .............................. : 47 CFR FCC Part 15 Subpart C 15.247 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology 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. Date of Test .................................... . Date (s) of Performance of Tests .... . Jun. 11, 2024 ~ Jun. 17, 2024 Date of Issue .................................... Jun. 17, 2024 Test Result ........................................ Pass Testing Engineer Len Liao Technical Manager Sliver Wan Authorized Signatory Jason Zhou Page 3 of 48 Report No.: HK2406113045-E Table of Contents Page 1. Summary .............................................................................................................................................................. 5 1.1. Test Standards ......................................................................................................................................................... 5 1.2. Test Description ....................................................................................................................................................... 5 1.3. Information of the Test Laboratory ......................................................................................................................... 6 1.4. Statement of the Measurement Uncertainty .......................................................................................................... 6 2. General Information ............................................................................................................................................. 7 2.1. Environmental Conditions ....................................................................................................................................... 7 2.2. General Description of EUT ..................................................................................................................................... 7 2.3. Description of Test Modes and Test Frequency ....................................................................................................... 8 2.4. Equipments Used during the Test ............................................................................................................................ 9 2.5. Related Submittal(s) / Grant (s) ............................................................................................................................. 10 2.6. Modifications ........................................................................................................................................................ 10 2.7. Description of Test Setup ....................................................................................................................................... 10 2.8. Description of Support Units ................................................................................................................................. 11 3. Test Conditions and Results ................................................................................................................................. 12 3.1. Conducted Emissions Test ..................................................................................................................................... 12 3.2. Radiated Emissions and Band Edge ....................................................................................................................... 15 3.3. Maximum Peak Conducted Output Power ............................................................................................................ 26 3.4. 20dB Bandwidth .................................................................................................................................................... 27 3.5. Frequency Separation ........................................................................................................................................... 30 3.6. Number of Hopping Frequency ............................................................................................................................. 32 3.7. Time of Occupancy (Dwell Time) .......................................................................................................................... 34 3.8. Out‐of‐Band Emissions .......................................................................................................................................... 37 3.9. Pseudorandom Frequency Hopping Sequence ...........…

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Test Model：PYH-STSPL Radiated Emission Conducted Emission