Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.
Rev 1/26/2023 (Marshall Group AB) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 1/13/2026 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BBQK-STOCKIII [Marshall Group AB] (“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. [Marshall Group AB] (“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, Edison Xu Rev 1/26/2023 (Marshall Group AB) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 1/13/2026 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BBQK-STOCKIII [Marshall Group AB] (“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, Edison Xu
Rev 1/26/2023 (Marshall Group AB) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date:1/13/2026 Ref: Attestation Statements Part 2.911(d)(7) Filing Grantee Code: [2BBQK] FCC ID: 2BBQK-STOCKIII FRN:0033904103 [Marshall Group AB] (“the applicant”) certifies that, as of the date of the filing of the application, [Marshall US Inc.] is our designated U.S. agent for service of process for the above referenced FCC ID. [Marshall Group AB] 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. [Marshall US Inc.] 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: [Marshall US Inc.] FRN: [0036216042] Address: [260 W 39th Street Suite 1100 New York, NY 10018 United States] Contact Person: [Mr Edison Xu] Email: [[email protected]] Sincerely, [Marshall Group AB] [Marshall US Inc.] [Edison Xu] [Mr Edison Xu]
Marshall Group AB Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 1/13/2026 SUBJECT: FCC ID: 2BBQK-STOCKIII To Whom It May Concern: I, the undersigned, hereby states this equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules, and will apply the Supplier's Declaration of Conformity procedure to the class B computer peripheral portion of this composite device. I understand the following FCC requirements: 1. Devices subject to the SDoC procedure are required to be tested to show compliance with the FCC technical regulations by a recognized accredited testing laboratory. The testing laboratory must be accredited by a Commission approved accreditation body or designated under the terms of a government-to-government Mutual Recognition Agreement (MRA). A listing of those accredited testing laboratories that have been recognized by the Commission is published on the FCC Webpage: https://apps.fcc.gov/oetcf/eas/reports/TestFirmSearch.cfm (Select the "accredited" option to search for FCC recognized accredited test firms.) 2. Pt 2.1077 contains the list of information that must be included in the Supplier's Declaration of Conformity, which must be supplied with each product sold. The SDoC compliance info shall be included in the User’s Manual or as a separate sheet. The info must contain the name, address, and phone number of the responsible party, which must be located within the United States. According to 2.909(b), the responsible party is either the Manufacturer or if the product is imported the Importer. Regards, Marshall Group AB ------------------------------- （Edison Xu）
Rev 11/20/07 (Marshall Group AB) Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2BBQK-STOCKIII Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name (Block Diagram, Schematics, Operational Description) (Block Diagram, Schematics, Operational Description) The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Short-term confidentiality period: 180 days Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, we also request temporary confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name (External Photos, Test Setup Photos, Manual, Internal Photos) (External Photos, Test Setup Photos, Manual, Internal Photos,) Sincerely, (signature) (printed name) Edison Xu
(Marshall Group AB) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 1/13/2026 SUBJECT: FCC Application for (FCC ID: 2BBQK-STOCKIII) To Whom It May Concern: We, the undersigned, hereby authorize _Scott He at Hwa-Hsing (Dongguan) Testing Co., Ltd._ on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by _ Scott He at Hwa-Hsing (Dongguan) Testing Co., Ltd. on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, Edison Xu (Must be signed by the person that is listed on the FCC Website)
CAD Revision 0.5.2 Marshall Nina (Stockwell III) China and Thailand SKU Date 2025-11-21 Laser etching
Test Laboratory: ritt 7 Layers SAR/HAC Testing Lab Date: 2025/11/17 System Check_HSL2450 DUT: Dipole:2450 MHz;Type:D2450V2 Communication System: CW; Frequency: 2450 MHz;Duty Cycle: 1:1 Medium: HSL2450_1117 Medium parameters used: f = 2450 MHz; σ = 1.841 S/m; ε r = 40.127; ρ = 1000 kg/m 3 Ambient Temperature：23.5°C; Liquid Temperature：22.6°C DASY5 Configuration: - Probe: EX3DV4 - SN7612; ConvF(8.1, 8.1, 8.1); Calibrated: 2025/5/7 - Sensor-Surface: 1.4mm (Mechanical Surface Detection) - Electronics: DAE4 Sn1288; Calibrated: 2025/7/17 - Phantom: ELI V4.0; Type: QD OVA 001 BB; Serial: 1054 - Measurement SW: DASY52, Version 52.10 (4); SEMCAD X Version 14.6.14 (7501) Pin=100mW/Area Scan (61x81x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 9.84 W/kg Pin=100mW/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 72.96 V/m; Power Drift = -0.09 dB Peak SAR (extrapolated) = 11.1 W/kg SAR(1 g) = 5.39 W/kg; SAR(10 g) = 2.47 W/kg Smallest distance from peaks to all points 3 dB below = 9 mm Ratio of SAR at M2 to SAR at M1 = 49.1% Maximum value of SAR (measured) = 8.89 W/kg 0 dB = 8.89 W/kg
Test Laboratory: ritt 7 Layers SAR/HAC Testing Lab Date: 2025/11/17 P01_Bluetooth_GFSK_Right Side_0cm_Ch78 Communication System: Bluetooth; Frequency: 2480 MHz;Duty Cycle: 1:1.305 Medium: HSL2450_1117 Medium parameters used: f = 2480 MHz; σ = 1.863 S/m; ε r = 40.07; ρ = 1000 kg/m 3 Ambient Temperature：23.5°C; Liquid Temperature：22.6°C DASY5 Configuration: - Probe: EX3DV4 - SN7612; ConvF(8.1, 8.1, 8.1); Calibrated: 2025/5/7 - Sensor-Surface: 1.4mm (Mechanical Surface Detection) - Electronics: DAE4 Sn1288; Calibrated: 2025/7/17 - Phantom: ELI V4.0; Type: QD OVA 001 BB; Serial: 1054 - Measurement SW: DASY52, Version 52.10 (4); SEMCAD X Version 14.6.14 (7501) Area Scan (91x181x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 0.0483 W/kg Zoom Scan (11x12x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 2.712 V/m; Power Drift = 0.16 dB Peak SAR (extrapolated) = 0.0490 W/kg SAR(1 g) = 0.028 W/kg; SAR(10 g) = 0.016 W/kg Smallest distance from peaks to all points 3 dB below: Larger than measurement grid (> 25 mm) Ratio of SAR at M2 to SAR at M1 = 56.2% Maximum value of SAR (measured) = 0.0403 W/kg 0 dB = 0.0403 W/kg Test Laboratory: ritt 7 Layers SAR/HAC Testing Lab Date: 2025/11/17 P02_Bluetooth_BLE 2M_Right Side_0cm_Ch19 Communication System: Bluetooth; Frequency: 2440 MHz;Duty Cycle: 1:3.15 Medium: HSL2450_1117 Medium parameters used: f = 2440 MHz; σ = 1.834 S/m; ε r = 40.141; ρ = 1000 kg/m 3 Ambient Temperature：23.5°C; Liquid Temperature：22.6°C DASY5 Configuration: - Probe: EX3DV4 - SN7612; ConvF(8.1, 8.1, 8.1); Calibrated: 2025/5/7 - Sensor-Surface: 1.4mm (Mechanical Surface Detection) - Electronics: DAE4 Sn1288; Calibrated: 2025/7/17 - Phantom: ELI V4.0; Type: QD OVA 001 BB; Serial: 1054 - Measurement SW: DASY52, Version 52.10 (4); SEMCAD X Version 14.6.14 (7501) Area Scan (91x181x1): Interpolated grid: dx=1.200 mm, dy=1.200 mm Maximum value of SAR (interpolated) = 0.0135 W/kg Zoom Scan (11x12x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 1.427 V/m; Power Drift = 0.18 dB Peak SAR (extrapolated) = 0.0110 W/kg SAR(1 g) = 0.00762 W/kg; SAR(10 g) = 0.00502 W/kg Smallest distance from peaks to all points 3 dB below: Larger than measurement grid (> 25 mm) Ratio of SAR at M2 to SAR at M1 = 62.7% Maximum value of SAR (measured) = 0.00944 W/kg 0 dB = 0.00944 W/kg
D2450V2 - SN: 893 Extended Dipole Calibrations Referring to IEC 62209-1 / KDB 865664 D01 / RSS102.SAR.MEAS, if dipoles are verified in return loss (＜-20dB, within 20% of prior calibration), and in impedance (within 5 ohm of prior calibration), the annual calibration is not necessary and the calibration interval can be extended. D2450V2 - SN: 893 2450 Head Date of Measurement Return-loss (dB) Delta (%) Real Impedance (ohm) Delta (ohm) Imaginary Impedance (ohm) Delta (ohm) 2024.06.15 -22.15 / 52.13 / 7.70 / 2025.06.14 -23.88 -7.80 55.05 2.92 4.44 -3.27 <Justification of the extended calibration> The return loss is ＜-20dB, within 20% of prior calibration, and the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. <Dipole Verification Data> Head 2450MHz _2025.06.14
FCC SAR Test Report Report Format Version 5.0.0 Page No. : 1 of 23 Report No. : PSZ-NQN2511190110SA02 Issued Date : Nov. 19, 2025 FCC SAR Test Report Report No. : PSZ-NQN2511190110SA02 Applicant : Marshall Group AB Address : Centralplan 15 111 20 Stockholm Sweden Manufacturer : Marshall Group AB Address : Centralplan 15 111 20 Stockholm Sweden Product : PORTABLE LOUDSPEAKER FCC ID : 2BBQK-STOCKIII Brand : Marshall Model No. : STOCKWELL III Standards : FCC 47 CFR Part 2 (2.1093) / IEEE C95.1:1992 / IEEE 1528:2013 KDB 865664 D01 v01r04 / KDB 865664 D02 v01r02 / KDB 447498 D04 v01 Date of Testing : Nov. 17, 2025 FCC Designation No. : CN1325 FCC Site Registration No. : 434559 CERTIFICATION: The above equipment has been tested by Huarui 7layers High Technology (Suzhou) Co., Ltd., and found compliance with the requirement of the above standards. The test record, data evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts of the measurements of the sample’s SAR characteristics under the conditions specified in this report. It should not be reproduced except in full, without the written approval of our laboratory. The client should not use it to claim product certification, approval, or endorsement by A2LA or any government agencies. Prepared By : Approved By : Chang Gao / Engineer Luke Lu / Manager This report is governed by, and incorporates by reference, CPS Conditions of Service as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our-business/cps/about- us/terms-conditions/and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute you unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. FCC SAR Test Report Report Format Version 5.0.0 Page No. : 2 of 23 Report No. : PSZ-NQN2511190110SA02 Issued Date : Nov. 19, 2025 Table of Contents Release Control Record ............................................................................................................................................................... 3 1.Summary of Maximum SAR Value ....................................................................................................................................... 4 2.Description of Equipment Under Test ................................................................................................................................. 5 3.SAR Measurement System ................................................................................................................................................... 6 3.1Definition of Specific Absorption Rate (SAR) ............................................................................................................... 6 3.2SPEAG DASY System ................................................................................................................................................. 6 3.2.1 Robot .................................................................................................................................................................. 7 3.2.2 Probes ................................................................................................................................................................ 8 3.2.3 Data Acquisition Electronics (DAE) .................................................................................................................... 8 3.2.4 Phantoms ........................................................................................................................................................... 9 3.2.5 Device Holder ................................................................................................................................................... 10 3.2.6 System Validation Dipoles ................................................................................................................................ 10 3.2.7 Tissue Simulating Liquids ................................................................................................................................. 11 3.3SAR System Verification ............................................................................................................................................ 13 3.4SAR Measurement Procedure ................................................................................................................................... 14 3.4.1 Area & Zoom Scan Procedure ......................................................................................................................... 14 3.4.2 Volume Scan Procedure ................................................................................................................................... 14 3.4.3 Power Drift Monitoring ...................................................................................................................................... 15 3.…
Text truncated - open the document above for the full version.
Lab: Hwa-Hsing (Dongguan) Testing Co., Ltd. Address: No.101, Building N1, Yuyuan 2 Road, Yuyuan Industrial Park, AronngJiang Town, Dongguan City, People’s Republic of China Tel: 0769-85598986 Web.: www.lyns-tci.com E- Mail: [email protected] Release Ver. 1.5 Page 1 of 73 Test Report No.: 25090301-RF-US-02 FCC Part 15, Subpart C Test Report FCC ID: 2BBQK-STOCKIII Applicant: Marshall Group AB Address: Centralplan 15 111 20 Stockholm Sweden Manufacturer: Marshall Group AB Address: Centralplan 15 111 20 Stockholm Sweden Product: PORTABLE LOUDSPEAKER Brand(s): Marshall, Test Model(s): STOCKWELL III Series Model(s): N/A Test Date: Oct. 30, 2025 ~ Nov. 13, 2025 Issued Date: Nov. 14, 2025 Issued By: Hwa-Hsing (Dongguan) Testing Co., Ltd. Address: No.101, Building N1, Yuyuan 2 Road, Yuyuan Industrial Park, AronngJiang Town, Dongguan City, People’s Republic of China Test Firm Registration No.: 915896 Designation No.: CN1255 Standards: FCC CFR 47 Part 2, Subpart J FCC CFR 47 Part 15, Subpart C The above equipment has been tested by Hwa-Hsing (Dongguan) Testing Co., Ltd., and found compliance with the requirement of the above standards. The test record, data evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts of the measurements of the sample’s EMC characteristics under the conditions specified in this report. Prepared by : Reviewed by : Nature Lee Sye Yang Approved by : Scott He “This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. Our report includes all the tests requested by you and the results thereof based upon the information that you provided to us. The report would be invalid without specific stamp of test institute and the signatures of tester and approver.” Lab: Hwa-Hsing (Dongguan) Testing Co., Ltd. Address: No.101, Building N1, Yuyuan 2 Road, Yuyuan Industrial Park, AronngJiang Town, Dongguan City, People’s Republic of China Tel: 0769-85598986 Web.: www.lyns-tci.com E- Mail: [email protected] Release Ver. 1.5 Page 2 of 73 Test Report No.: 25090301-RF-US-02 Table of Contents Release Control Record ................................................................................................................................... 4 1. Summary of Test Results ............................................................................................................................ 5 1.1 Measurement Uncertainty ........................................................................................................................ 5 1.2 Modification Record.................................................................................................................................. 5 2. General Information...................................................................................................................................... 6 2.1 General Description of EUT ..................................................................................................................... 6 2.2 Description of Test Channels.................................................................................................................... 7 2.3 Test Mode Applicability and Tested Channel Detail.................................................................................. 8 2.4 Description of Support Units .................................................................................................................. 10 2.5 Configuration of System under Test ....................................................................................................... 10 3. Test Types and Results.............................................................................................................................. 11 3.1 Radiated Emission and Band-edge Measurement ................................................................................ 11 3.1.1 Limits of radiated emission and band-edge measurement ............................................................... 11 3.1.2 Test Instruments ................................................................................................................................ 12 3.1.3 Test Procedures ................................................................................................................................ 13 3.1.4 Deviation from Test Standard ............................................................................................................ 14 3.1.5 Test Setup ......................................................................................................................................... 15 3.1.6 EUT Operating Conditions ................................................................................................................ 16 3.1.7 Test Results ....................................................................................................................................... 17 3.2 Conducted Emission Measurement ....................................................................................................... 29 3.2.1 Limits of Conducted Emission Measurement .................................................................................... 29 3.2.2 Test Instruments ................................................................................................................................ 29 3.2.3 Test Procedures ................................................................................................................................ 30 3. 2.4 Test Setup ......................................................................................................................................... 30 3.2.5 EUT Operating Condition ........................................................…
Text truncated - open the document above for the full version.
Passive Antenna Gain Pattern Test Report Report No.: C25O392 Issue Date: Dec. 22, 2025 Eurofins E&E Wireless Taiwan Co., Ltd. Page 1 of 24 Template: v01.00 Passive Antenna Radiation Gain Pattern Test Report Applicant Name : MERRY ELECTRONICS CO., LTD. Applicant Address : No. 22, 23rd Road, Taichung Industrial Park, Nantun Dist., Taichung City 408213, Taiwan Product Name : Speaker Brand Name : MERRY Model Number : PSS901 Report Number : C25O392 Sample Received Date : Oct. 30, 2025 Date of Testing : Oct. 31, 2025 Test Engineer : Jason Tsai Report Issue Date : Dec. 22, 2025 The above device have been tested by Eurofins E&E Wireless Taiwan Co., Ltd.. The test record, data evaluation & Device Under Test (DUT) configurations represented herein are true and accurate accounts of the measurements of the sample’s characteristics under the conditions specified in this report. All testing performed at Eurofins E&E Wireless Taiwan Co., Ltd. was conducted in the Environmental Simulation Lab. All equipment used in making physical determinations is accurate and bears recent traceability to the National Standards and Technology. Note: 1. The test results are valid only for samples provided by customers and under the test conditions described in this report. 2. This report shall not be reproduced except in full, without the written approval of Eurofins E&E Wireless Taiwan Co., Ltd. 3. The relevant information is provided by customers in this test report. According to the correctness, appropriateness or completeness of the information provided by the customer, if there is any doubt or error in the information which affects the validity of the test results, the laboratory does not take the responsibility. Approved By： Willson Lin / OTA Laboratory Supervisor Passive Antenna Gain Pattern Test Report Report No.: C25O392 Issue Date: Dec. 22, 2025 Eurofins E&E Wireless Taiwan Co., Ltd. Page 2 of 24 Template: v01.00 Table of Contents Revision History ........................................................................................................................................................................... 3 1. Overview ................................................................................................................................................................................. 4 1.1. Reference .................................................................................................................................................................... 4 2. Information of Testing Laboratory ....................................................................................................................................... 4 3. Device Under Test Information ............................................................................................................................................. 4 4. Test Equipment Used During Testing .................................................................................................................................. 5 4.1. Equipment List ............................................................................................................................................................. 5 4.2. Measurement Software ................................................................................................................................................ 5 4.3. Reference Standard Objects ........................................................................................................................................ 5 5. Test Methodology .................................................................................................................................................................. 6 5.1. Test System Setup ....................................................................................................................................................... 6 5.2. Gain-transfer measurement ......................................................................................................................................... 6 5.3. TRP (Radiated Efficiency) Calculation ......................................................................................................................... 7 6. Summation Test Report ........................................................................................................................................................ 8 7. Measurement Uncertainty ..................................................................................................................................................... 9 ANNEX A. DUT Photos ..................................................................................................................................................... 10 ANNEX B. Setup Photos .................................................................................................................................................. 11 ANNEX C. Antenna Photos .............................................................................................................................................. 12 ANNEX D. Radiation Pattern ........................................................................................................................................... 13 Passive Antenna Gain Pattern Test Report Report No.: C25O392 Issue Date: Dec. 22, 2025 Eurofins E&E Wireless Taiwan Co., Ltd. Page 3 of 24 Template: v01.00 Revision History Rev. Issue Date Revisions Revised by 00 Dec. 22, 2025 Initial release Nina Lin Passive Antenna Gain Pattern Test Report Report No.: C25O392 Issue Date: Dec. 22, 2025 Eurofins E&E Wireless Taiwan Co., Ltd. Page 4 of 24 Template: v01.00 1. Overview This document describes the test setups, test Methods, required test equipment, and the test limit criteria used to perform an Acceptance Test of the MERRY ELECTRONICS CO., LTD., PSS901. The tests described in this document were formal tests as described with the objective of the t…
Text truncated - open the document above for the full version.
260 W 39th Street · New York, New York, 10018 · United States
| # | Rule Parts | Frequency Range | Power Output |
|---|---|---|---|
| 1 | 15C | 2.40 GHz - 2.48 GHz | 3.77 mW |