A94318Wireless Headphones

Bose Corporation

Application Details

Equipment Class: DSS - Part 15 Spread Spectrum Transmitter
Date of Grant: Sep 17, 2024
Application Purpose: Original Equipment
Date of Application: Aug 25, 2024
Equipment Note: Wireless Headphones
Frequency Range: 2402.00000000 - 2480.00000000
Company: Bose Corporation
Country: United States

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Attestation Statements

U.S. Agent for Service of Process Attestation To the attention of Federal Communications Commission Authorization and Evaluation Division Applicant / Designated U.S Agent Company Name: BOSE CORPORATION FRN: 0006179345 Grantee Code: A94 Contact Name: John Yee Street Address: THE MOUNTAIN FRAMINGHAM City/Province/Zip: MA, 1701 United States Telephone No: (508)766-1507 Email: [email protected] This letter is to confirm that the Applicant has designated itself as the U.S Agent for service of process as required by §2.911(d)(7). The Applicant further acknowledges acceptance 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. Applicant / U.S. Agent Signature: Date: 2024-06-24 Signed by (printed name): John Yee

Attestation Statements

Date:202 4/ 06/18 FCC ID:A94318 To the attention of Federal Communications Commission Authorization and Evaluation Division To whom it may concern: We, Bose Corporation, hereby declare that Model: 318R,318L. The product size is very small, and the surface is not flat. There is not enough space to show either the FCC ID on the product body. Therefore, we would like to apply for exemption to show the FCC ID on product, the ID in the owner’s manual instead. If you have any questions regarding the authorization, please don’t hesitate to contact us. Sincerely yours, --------------------------------------------------------- John Yee Manager, EMC group, Bose Corporation Phone (508)766-1507 Email: [email protected]

Attestation Statements

Date: 2024-06-24 FCC ID:A94318 To the attention of Federal Communications Commission Authorization and Evaluation Division Attestation Statements Attestation Statements Part 2.911(d)(5)(i) Filing Bose Corporation 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. Attestation Statements Part 2.911(d)(5)(ii) Filing Bose Corporation 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 yours, -------------------------------------------------------------- John Yee Manager, EMC group, Bose Corporation Phone (508)766-1507 Email: [email protected]

Cover Letter(s)

Date:2024/06/18 FCC ID:A94318 To the attention of Federal Communications Commission Authorization and Evaluation Division Permanent Confidentiality Request 㻌 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, the Applicant hereby requests confidential treatment of information accompanying this Application as outlined below: Schematics Block Diagram Operational Description 㻌㻌 The above 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. 㻌 The Applicant understands that pursuant to Rule 0.457, disclosure of this Application and all accompanying documentation will not be made before the date of the Grant for this application. 㻌 Sincerely yours, -------------------------------------------------------- John Yee Manager, EMC group, BOSE Corporation Phone (508)766-1507 Email: [email protected]

Cover Letter(s)

Date:2024/06/18 FCC ID: A94318 㻌 To the attention of Federal Communications Commission Authorization and Evaluation Division 㻌 Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we request short-term confidential treatment for the following information until 180 days after the Grant Date of Equipment Authorization in order to ensure sensitive business information remains confidential until the actual marketing of the device: 㻌 External photos Test Setup photos User’s manual Internal Photos 㻌㻌 Sincerely yours, ------------------------------------------------ John Yee Manager, EMC group, BOSE Corporation Phone (508)766-1507 Email: [email protected]

Cover Letter(s)

Date:2024/06/18 FCC ID:A94318 AUTHORIZATION LETTER To Whom It May Concern: Bose Corporation hereby authorizes Andrea Hsia / Assistant Manager of Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch (“BV CPS Taoyuan”), to act on its behalf in all matters relating to the Federal Communication Commission (“FCC”) application for equipment authorization in connection with the FCC ID listed above, including signing of all documents relating to these matters. All acts carried out by Andrea Hsia / Assistant Manager of BV CPS Taoyuan on Bose Corporation’s behalf, within the scope of the powers granted herein, shall have the same effect as acts of its own. If you have any questions regarding the authorization, please don’t hesitate to contact us. Sincerely yours, ----------------------------------------------------- John Yee Manager, EMC group, Bose Corporation Phone (508)766-1507 Email: [email protected]

RF Exposure Info

SAR Test Report Report Format Version 6.0.0 Page No. : 1 of 23 Report No. : SFBAYG-WTW-P24020046 Issued Date : Jun. 03, 2024 SAR Test Report Report No. : SFBAYG-WTW-P24020046 Applicant : Bose Corporation Address : 100 The Mountain Road Framingham Massachusetts 01701-9168 United States Product : Wireless Headphones FCC ID : A94318 Brand : BOSE Model No. : 318R, 318L FCC Rule Part CFR §2.1093 Standards : IEEE Std 1528:2013, KDB 865664 D01 v01r04, KDB 865664 D02 v01r02, KDB 447498 D04 Interim General RF Exposure Guidance v01 Sample Received Date : Mar. 21, 2024 Date of Testing : Apr. 08, 2024 Lab Address : No. 47-2, 14th Ling, Chia Pau Vil., Lin Kou Dist., New Taipei City, Taiwan Test Location : No. 19, Hwa Ya 2nd Rd., Wen Hwa Vil., Kwei Shan Dist., Taoyuan City, Taiwan FCC Accredited No. : TW0003 CERTIFICATION: The above equipment have been tested by Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch–Lin Kou Laboratories, 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 TAF or any government agencies. Prepared By : Vera Huang / Specialist Approved By : Gordon Lin / Manager This report is governed by, and incorporates by reference, the Conditions of Testing 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. Statements of conformity are based on simple acceptance criteria without taking measurement uncertainty into account, unless otherwise requested in writing. 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 your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. SAR Test Report Report Format Version 6.0.0 Page No. : 2 of 23 Report No. : SFBAYG-WTW-P24020046 Issued Date : Jun. 03, 2024 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 3.1 Definition of Specific Absorption Rate (SAR) ............................................................................................................... 6 3.2 SPEAG DASY6 System ............................................................................................................................................... 6 3.2.1 Robot ............................................................................................................................................................... 7 3.2.2 Probes ............................................................................................................................................................. 8 3.2.3 Data Acquisition Electronics (DAE) .................................................................................................................. 8 3.2.4 Phantoms ......................................................................................................................................................... 8 3.2.5 Device Holder .................................................................................................................................................. 9 3.2.6 System Validation Dipoles ............................................................................................................................. 10 3.2.7 Power Source ................................................................................................................................................ 10 3.2.8 Tissue Simulating Liquids .............................................................................................................................. 11 3.3 SAR System Verification ............................................................................................................................................ 13 3.4 SAR Measurement Procedure ................................................................................................................................... 14 3.4.1 Area…

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RF Exposure Info

Plots of System Verification Appendix A. Plots of System Verification The plots for system verification are shown as follows. Report No.: SFBAYG-WTW-P24020046 Plots of System Verification Measurement Report S01 System Check_H2450_240408 Device under Test Properties Model, Manufacturer Dimensions [mm] IMEI DUT Type Dipole_D2450V2_737, 10.0 x 10.0 x 300.0 Dipole Exposure Conditions Phantom Section, TSL Position, Test Distance [mm] Band Group, UID Frequency [MHz], Channel Number Conversion Factor TSL Conductivity [S/m] TSL Permittivity Flat, , CW, 0-- 2450.000, 0 6.76 1.82 39.9 Hardware Setup Phantom TSL, Measured Date Probe, Calibration Date DAE, Calibration Date Twin-SAM V8.0 (30deg probe tilt) - 1988 H06T27N5 , 2024-Apr-08 EX3DV4 - SN7797, 2024-01-08 DAE4 Sn1589, 2023-05-24 Scan Setup Area Scan Zoom Scan Grid Extents [mm] 40.0 x 96.0 35.0 x 35.0 x 30.0 Grid Steps [mm] 10.0 x 12.0 5.0 x 5.0 x 1.5 Sensor Surface [mm] 3.0 1.4 Measurement Results Area Scan Zoom Scan Date 2024-04-08 2024-04-08 psSAR1g [W/kg] 2.91 2.91 psSAR10g [W/kg] 1.35 1.36 Power Drift [dB] 0.01 0.01 Report No.: SFBAYG-WTW-P24020046 Plots of System Verification Measurement Report S02 System Check_H2450_240408 Device under Test Properties Model, Manufacturer Dimensions [mm] IMEI DUT Type Dipole_D2450V2_737, 10.0 x 10.0 x 300.0 Dipole Exposure Conditions Phantom Section, TSL Position, Test Distance [mm] Band Group, UID Frequency [MHz], Channel Number Conversion Factor TSL Conductivity [S/m] TSL Permittivity Flat, , CW, 0-- 2450.000, 0 6.76 1.82 39.9 Hardware Setup Phantom TSL, Measured Date Probe, Calibration Date DAE, Calibration Date Twin-SAM V8.0 (30deg probe tilt) - 1988 H06T27N5 , 2024-Apr-08 EX3DV4 - SN7797, 2024-01-08 DAE4 Sn1589, 2023-05-24 Scan Setup Area Scan Zoom Scan Grid Extents [mm] 40.0 x 96.0 35.0 x 35.0 x 30.0 Grid Steps [mm] 10.0 x 12.0 5.0 x 5.0 x 1.5 Sensor Surface [mm] 3.0 1.4 Measurement Results Area Scan Zoom Scan Date 2024-04-08 2024-04-08 psSAR1g [W/kg] 2.91 2.91 psSAR10g [W/kg] 1.35 1.36 Power Drift [dB] 0.01 0.01 Report No.: SFBAYG-WTW-P24020046 Plots of Measurement Appendix B. Plots of Measurement The SAR plots for highest measured SAR in each exposure configuration, wireless mode and frequency band combination are shown as follows. Report No.: SFBAYG-WTW-P24020046 Plots of Measurement Measurement Report P01 BT_BDR_Front Face_0mm_Ch78_Earbuds L_Ant 0 Device under Test Properties Model, Manufacturer Dimensions [mm] IMEI DUT Type 318L 21.0 x 17.0 x 30.0 Left Earbuds Exposure Conditions Phantom Section, TSL Position, Test Distance [mm] Band Group, UID Frequency [MHz], Channel Number Conversion Factor TSL Conductivity [S/m] TSL Permittivity Flat, Front Face, 0.00 ISM 2.4 GHz Band Bluetooth, 10032-CAA 2480.000, 78 6.76 1.85 39.9 Hardware Setup Phantom TSL, Measured Date Probe, Calibration Date DAE, Calibration Date Twin-SAM V8.0 (30deg probe tilt) - 1988 H06T27N5 , 2024-Apr-08 EX3DV4 - SN7797, 2024-01-08 DAE4 Sn1589, 2023-05-24 Scan Setup Area Scan Zoom Scan Grid Extents [mm] 72.0 x 72.0 30.0 x 30.0 x 30.0 Grid Steps [mm] 12.0 x 12.0 5.0 x 5.0 x 5.0 Sensor Surface [mm] 3.0 1.4 Measurement Results Area Scan Zoom Scan Date 2024-04-08 2024-04-08 psSAR1g [W/kg] 0.729 0.884 psSAR10g [W/kg] 0.284 0.292 Power Drift [dB] 0.06 0.06 M2/M1 [%] 35.1 Dist 3dB Peak [mm] 5.2 Report No.: SFBAYG-WTW-P24020046 Plots of Measurement Measurement Report P02 BT_BDR_Front Face_0mm_Ch0_Earbuds R_Ant 0 Device under Test Properties Model, Manufacturer Dimensions [mm] IMEI DUT Type 318R 21.0 x 17.0 x 30.0 Right Earbuds Exposure Conditions Phantom Section, TSL Position, Test Distance [mm] Band Group, UID Frequency [MHz], Channel Number Conversion Factor TSL Conductivity [S/m] TSL Permittivity Flat, Front Face, 0.00 ISM 2.4 GHz Band Bluetooth, 10032-CAA 2402.000, 0 6.76 1.79 40.0 Hardware Setup Phantom TSL, Measured Date Probe, Calibration Date DAE, Calibration Date Twin-SAM V8.0 (30deg probe tilt) - 1988 H06T27N5 , 2024-Apr-08 EX3DV4 - SN7797, 2024-01-08 DAE4 Sn1589, 2023-05-24 Scan Setup Area Scan Zoom Scan Grid Extents [mm] 72.0 x 72.0 30.0 x 30.0 x 30.0 Grid Steps [mm] 12.0 x 12.0 5.0 x 5.0 x 5.0 Sensor Surface [mm] 3.0 1.4 Measurement Results Area Scan Zoom Scan Date 2024-04-08 2024-04-08 psSAR1g [W/kg] 0.305 0.532 psSAR10g [W/kg] 0.145 0.159 Power Drift [dB] 0.01 -0.05 M2/M1 [%] 39.4 Dist 3dB Peak [mm] 5.4 Report No.: SFBAYG-WTW-P24020046 Appendix D. Maximum Target Conducted Power The maximum conducted average power (Unit: dBm) including tune-up tolerance is shown as below. Report No.: SFBAYG-WTW-P24020046 ModeChannel Frequency Ant 0 Max Tune-up 0240215.5 39244115.5 78248015.5 0240213.5 39244113.5 78248013.5 0240213.5 39244113.5 78248013.5 024027.5 1924407.5 3924807.5 024027.5 1924407.5 3924807.5 BR / EDR (DQPSK) BR / EDR (GFSK) LE-1M Bluetooth BR / EDR (8DPSK) LE-2M Tune-up Power (Full) for Left Earbuds Report No.: SFBAYG-WTW-P24020046 ModeChannel Frequency Ant 0 Max Tune-up 0240215.5 39244115.5 78248015.5 0240213.5 39244113.5 78248013.5 0240213.5 39244113.5 78248013.5 024027.5 1924407.5 3924807.5 024027.5 1924407.5 3924807.5 Tune-up Power (Full) for Right Earbuds Bluetooth BR / EDR (DQPSK) BR / EDR (GFSK) LE-1M BR / EDR (8DPSK) LE-2M Report No.: SFBAYG-WTW-P24020046 Appendix E. Measured Conducted Power Result The measuring conducted power (Unit: dBm) are shown as below. Report No.: SFBAYG-WTW-P24020046 Conducted Power (Full) for Left Earbuds ModeChannel Frequency SISO Ant 0 Avg. Power 0240214.88 39244115 78248015.09 0240212.98 39244113.06 78248013.12 0240212.97 39244113.06 78248013.12 024027.33 1924407.38 3924807.43 024027.31 1924407.36 3924807.4 BR / EDR (8DPSK) BR / EDR (DQPSK) LE-1M Bluetooth Ant 0 LE-2M BR / EDR (GFSK) Report No.: SFBAYG-WTW-P24020046 Conducted Power (Full) for Right Earbuds ModeChannel Frequency SISO Ant 0 Avg. Power 0240215.05 39244115.11 78248015.07 0240213.02 39244113.02 78248012.8 0240213.03 39244113.02 78248012.8 024027.38 1924407.34 3924807.11 024027.36 1924407.32 3924807.09 BR / EDR (DQPSK) BR /…

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Test Report

0 Brussels Antenna Report Presented by : Merry Team 1 Contents • Test Equipment • Antenna Efficiency Measurement Setup • Antenna Efficiency and gain values • Radiation Pattern • Measurements description • Antenna photo 2 Test Equipment Passive Antenna Type: PIFA Antenna Gain Left earbud: the maximum gain is -0.29 dBi. Right earbud: the maximum gain is -1.65 dBi Test Equipment E5071C ENA Vector Network Analyzer – Keysight / Calibration Date: 2023/02/10 Calibration due date: 2025/02/04 Test chamber ETS‐lindgren_AMS‐8500 Antenna Measurement System Testers Amo Yang 楊詔閔 (Test date:20240111) Test Software ETS‐Lindgren EMQuest 4 Antenna Efficiency and Peak gain unit Frequency (MHz) 2400 2410 2420 2430 2440 2450 2460 2470 2480 AVG Left side Efficiency (dB) ‐4.88 ‐4.85 ‐4.80 ‐4.76 ‐4.64 ‐4.55 ‐4.34 ‐4.19 ‐3.98 ‐4.55 (%) 32.50 32.70 33.13 33.42 34.34 35.04 36.83 38.12 40.04 35.13 Peak gain (dBi) ‐0.95 ‐1.03 ‐1.12 ‐1.27 ‐1.22 ‐1.11 ‐0.84 ‐0.60 ‐0.29 ‐0.94 Right side Efficiency (dB) ‐6.07 ‐6.15 ‐6.19 ‐6.22 ‐6.20 ‐6.19 ‐6.12 ‐6.10 ‐6.06 ‐6.15 (%) 24.72 24.27 24.03 23.88 23.97 24.02 24.42 24.57 24.78 24.19 Peakgain (dBi) ‐1.97 ‐1.95 ‐1.87 ‐1.92 ‐1.80 ‐1.77 ‐1.76 ‐1.74 ‐1.65 ‐1.82 • Left earbud: the maximum gain is -0.29 dBi. • Right earbud: the maximum gain is -1.65 dBi. 5 Stereo Frequency 2.44GHz Scale Left sideRight side Radiation pattern 6 Measurements description Conducted Measurements Conducted measurements was done using Network Analyzer – Keysight, the Return Loss of the Antenna was obtained to ensure the efficiency over the operation frequency. Antenna Radiation Patten Measurements Radiation PatternMeasurements was done in the ETS‐lindgrenanechoic chamber through radiation, the earbud was set to continuous radiation and the AMS‐8500 receive the RF power in 360degree angel with rotation of EUT. Antenna Gain Calculation The antenna gain was calculated as the difference between the measured Peak EIRP(dBm) and Ant. port input pwr(dBm) in previous page.

Test Report

Report No.: RFBAYG-WTW-P24020046 Page No. 1 / 77 Report Format Version: 7.1.0 Reference No.: BAYG-WTW-P24020046 TEST REPORT CERTIFICATE OF CONFORMITY Standard: 47 CFR FCC Part 15, Subpart C (Section 15.247) Report No.: RFBAYG-WTW-P24020046 FCC ID: A94318 Product: Wireless Headphones Brand: BOSE Model No.: 318R,318L Received Date: 2024/3/21 Test Date: 2024/3/28 ~ 2024/4/2 Issued Date: 2024/5/31 Applicant: Bose Corporation Address: 100 The Mountain Road Framingham Massachusetts 01701-9168 United States Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Lin Kou Laboratories Lab Address: No. 47-2, 14th Ling, Chia Pau Vil., Lin Kou Dist., New Taipei City, Taiwan Test Location: No. 47-2, 14th Ling, Chia Pau Vil., Lin Kou Dist., New Taipei City, Taiwan FCC Registration / Designation Number: 198487 / TW2021 Approved by: , Date: 2024/5/31 Jeremy Lin / Project Engineer This test report consists of 77 pages in total. It may be duplicated completely for legal use with the approval of the applicant. It should not be reproduced except in full, without the written approval of our laboratory. The test results in the report only apply to the tested sample. The test results in this report are traceable to the national or international standards. Prepared by : Jessica Cheng / Senior Specialist This report is governed by, and incorporates by reference, the Conditions of Testing 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. Statements of conformity are based on simple acceptance criteria without taking measurement uncertainty into account, unless otherwise requested in writing. 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 your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Report No.: RFBAYG-WTW-P24020046 Page No. 2 / 77 Report Format Version: 7.1.0 Reference No.: BAYG-WTW-P24020046 Table of Contents Release Control Record ....................................................................................................................................................... 4 1 Certificate .................................................................................................................................................................... 5 2 Summary of Test Results .......................................................................................................................................... 6 2.1 Measurement Uncertainty ........................................................................................................................................ 6 2.2 Supplementary Information ...................................................................................................................................... 6 3 General Information ................................................................................................................................................... 7 3.1 General Description .................................................................................................................................................. 7 3.2 Antenna Description of EUT ..................................................................................................................................... 8 3.3 Channel List .............................................................................................................................................................. 9 3.4 Test Mode Applicability and Tested Channel Detail ................................................................................................ 10 3.5 Duty Cycle of Test Signal ........................................................................................................................................ 11 3.6 Test Program Used and Operation Descriptions .................................................................................................... 13 3.7 Connection Diagram of EUT and Peripheral Devices ............................................................................................ 13 3.8 Configuration of Peripheral Devices and Cable Connections ................................................................................ 14 4 Test Instruments ...................................................................................................................................................... 15 4.1 RF Output Power .................................................................................................................................................... 15 4.2 Number of Hopping Frequency Used ..................................................................................................................... 15 4.3 Dwell Time on Each Channel ..................................................................................…

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Contact Information

Applicant

John Yee(Manager, DCE-EMC)

[email protected](508)766-1507Fax: (508766-1145

Test Firm

Bureau Veritas CPS(H.K.) Ltd., Taoyuan BranchLiu Ken

[email protected]+886-3-2600609Fax: +886-3-2115834

Technical Specifications

#	Rule Parts	Frequency Range	Power Output
1	15C	2.40 GHz - 2.48 GHz	33.00 mW

Confidentiality

Long Term

Grant Notes

Power listed is maximum conducted output power. The transmitter must not transmit simultaneously with any other transmitter, except in accordance with FCC multi-transmitter product procedures or as described in this filing. End-users and installers must be provided with transmitter operating conditions for satisfying RF exposure compliance. The highest reported SAR value for head exposure condition is 0.97 W/kg.