C3K1944Headset

Product and Regulatory Guide, Limited Warranty & Agreement Guia Regulamentar e de Produto, Garantia Limitada e Contrato Guide du produit et de la réglementation, Contrat de garantie limitée Guía del producto y sobre reglamentos, garantía limitada y contrato 1-175941.indd 119/06/2020 14:55 2 XBOX ACCESSORY PRODUCT MANUAL YOU MUST ACCEPT LIMITED HARDWARE WARRANTY & AGREEMENT AND MICROSOFT SERVICES AGREEMENT (BOTH WITH BINDING ARBITRATION AND CLASS ACTION WAIVER IN THE U.S.) AND SOFTWARE LICENSE TERMS By purchasing or using your Microsoft Product, you agree to: • Manufacturer’s Limited Hardware Warranty & Agreement at support.microsoft.com/warranty. Please read the summary starting on page 8. If you live in (or are a business with your principal place of business in) the United States, please read the binding arbitration clause and class action waiver at aka.ms/hw‑warr‑arbitration and the summary starting on page 8. It affects how disputes concerning your Microsoft Product, its price, advertising, marketing, communications, your purchase transaction, billing, or the Manufacturer’s Limited Hardware Warranty & Agreement are resolved. • Microsoft Services Agreement at microsoft.com/msa. It governs use of Xbox online service and Microsoft Studio games and apps. • Software License Agreement at xbox.com/slt. Please read these agreements. If you do not accept them, do not set up or use your Xbox Product (console or accessory). Return the Xbox Product to Microsoft or your retailer for a refund. For Xbox console and accessory product manuals, go to xbox.com/support/manual. This symbol identifies safety and health messages in this guide. Read this guide for important safety and health information for the product that you have purchased. WARNING: Failure to properly set up, use, and care for this product can increase the risk of damage to your device or devices. You can find additional support at support.microsoft.com. CAUTION: Cable and cord safety Exposed device cables and cords pose a potential tripping hazard. Arrange all cables and cords so that people and pets are not likely to trip over or accidentally pull on them as they move around or walk through the area. Do not allow children to play with cables and cords. To avoid damaging the cords and cables: • Protect cords from being walked on or crushed. • Protect cords from being pinched or sharply bent, particularly where they connect to a wall power (mains) outlet, the power supply unit, and your device. • Do not jerk, knot, sharply bend, stretch, or otherwise abuse the power cords. Do not wrap your power cord too tightly, especially around the power brick. Instead, wrap it using loose coils rather than tight angles. 1-175941.indd 219/06/2020 14:55 3 • When positioning your device or PSU make sure that the cords are not bent sharply and that the connectors are not pushed against a wall or hard surface. • Do not expose power cords to heat sources. • Do not allow pets or children to bite or chew on power cords. • When disconnecting the power cord, pull on the plug—do not pull on the cord. • Inspect your power cords and cables regularly. If a power cord or cable becomes warm, frayed, cracked or damaged in any way, stop using it immediately. We recommend that you replace your damaged power cord or cable with a genuine Microsoft replacement power cord or cable. • Unplug your charging cable or cord during lightning storms or when unused for long periods. WARNING: General Battery Safety Your device uses disposable or rechargeable batteries. Improper use or misuse of disposable or rechargeable batteries may cause injury, death, property damage, and may damage your device or its accessories as a result of battery fluid leakage, fire, overheating, or explosion. Battery fluid is corrosive and may be toxic. It can cause burns and may be harmful or fatal if swallowed. To reduce the risk of injury when using disposable or rechargeable batteries: • Keep batteries out of the reach of children. • Charge rechargeable batteries only with the charger provided with your device. Using an improper charging method may result in fire or explosion. • Immediately remove old, weak, or worn out batteries from your device. Recycle or dispose of old, weak, or worn batteries in accordance with local, regional, or national law or regulation. • Remove the batteries from your device before storing your device for an extended period. • Avoid contact with battery fluid. If a battery leaks: • Keep the leaked fluid from touching your skin, eyes, clothes, or other surfaces. If the battery fluid contacts your skin, eyes, or clothes, immediately wash the affected area with water and contact your doctor or other medical provider as appropriate. • Carefully remove all batteries by reversing the battery installation instructions provided with your device. • Before inserting new batteries, thoroughly clean the battery compartment with a dry cloth, or follow the battery manufacturer’s recommendations for cleanup. • We recommend that you use Microsoft approved battery packs. Replace the disposable or rechargeable batteries supplied with your device with batteries of the same type and rating. • Do not disassemble, crush, open, puncture, shred, short external contacts or circuits, expose to temperature above 40 °C (104 °F), or dispose of batteries in fire or water. • Do not mix new and old batteries or batteries of different types (for example, carbon-zinc and alkaline batteries). • Do not allow metal objects to touch the battery terminals on the device; they can become hot and cause burns. • Do not carry or place batteries or battery packs together with other metal objects. • Do not leave a battery-powered device in direct sunlight for an extended period. • Do not immerse batteries in water or allow them to become wet. • Do not use a battery if it has become wet. Do not attempt to dry a battery or battery pack with a hair dryer, in a conventional oven, or in a microwave oven. 1-175941.indd 319/…

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Microsoft Corporation is an equal opportunity employer. 10/23/2020 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 To whom it may concern: I, the undersigned, hereby authorize UL Verification Services Inc. to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by UL Verification Services Inc. on our behalf shall have the same effect as acts of our own. 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). In authorizing UL Verification Services Inc. as our representative, we still recognize that we are responsible to: a) Comply with the relevant provisions of the certification program; b) Make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints; c) Make claims regarding certification only in respect of the scope for which certification has been granted; d) Not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized; Microsoft Corporation is an equal opportunity employer. e) Upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division; f) Use certification only to indicate that products are certified as being in conformity with specified standards; g) Endeavor to ensure that no certificate nor report nor any part thereof is used in a misleading manner; h) Ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division; i) Keep a record of all complaints made known to us relating to the product’s compliance with requirements of the relevant standard and to make these records available to the when requested; j) Take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification; k) Document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely, Jems Pradhan Compliance Engineer, Microsoft Corporation.

Microsoft Corporation is an equal opportunity employer. 10/23/2020 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, Maryland 21046 Agency Authorization Letter To whom it may concern: We, the undersigned Microsoft ® Corporation hereby authorize [Underwriters Laboratories Inc., 47173 Benicia St, Fremont CA, 94538] to act on our behalf in all matters relating to all processes required in the FCC Part 15C approval and any communication needed with the national authority. Any and all acts carried out by [Underwriters Laboratories Inc.] on our behalf shall have the same effects as acts of our own. This authorization is limited to the following products： Microsoft Model No：1944 If you have any questions regarding the authorization, please don’t hesitate to contact us. Thank you! Sincerely, Jems Pradhan Compliance Engineer, Microsoft Corporation.

Microsoft Corporation is an equal opportunity employer. 12/03/2020 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Request for Confidentiality for FCC ID: [C3K1944] To Whom It May Concern: Pursuant to the provisions of the Commission’s rules 47 CFR sections 0.457(d) and 0.459, we are requesting the Commission to withhold the following attachments as confidential document from public disclosure indefinitely. • Block Diagram • Schematics • Operational Description The above mentioned documents contain detailed system and equipment descriptions that are considered as proprietary information in the operation of the equipment. Public disclosure of the above documents might be harmful to our company and would give competitors an unfair advantage in the market. In additional to above mentioned documents, pursuant to Public Notice DA 04- 1705 of the Commission’s policy, in order to comply with the marketing regulations in 47 CFR §2.803 and the importation rules in 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we are requesting the commission to grant short-term confidentiality on the following attachments until 06/23/2021. Microsoft Corporation is an equal opportunity employer. • External Photos • Test Setup Photos • User’s Manual • Internal Photos It is our understanding that all measurement test reports, FCC ID label format and correspondence during certification review process cannot be granted as confidential documents and the information will be available for public review once the grant of equipment authorization is issued. Sincerely, Jems Pradhan Compliance Engineer, Microsoft Corporation.

External Photos Equipment: Microsoft Wireless Accessory Model Number: 1944 Figure 1: Top View Figure 2: Front View Figure 3: Side View

Label Content for Model 1944 Microsoft Corporation Model: 1944 FCC ID: C3K1944 IC: 3048A-1944 Label Label

Internal Photos Equipment: Microsoft Wireless Accessory Model Number: 1944 Construction Photos of the EUT

Report No.: RFBIDE-WTW-P20090710-2 Page No. 1 / 55 Report Format Version: 6.1.1 FCC Test Report (BT-EDR) Report No.: RFBIDE-WTW-P20090710-2 FCC ID: C3K1944 Test Model: 1944 Received Date: Jul. 30, 2020 Test Date: Oct. 22 to 27, 2020 Issued Date: Nov. 6, 2020 Applicant: MICROSOFT CORPORATION Address: ONE MICROSOFT WAY REDMOND, WA 98052-6399, U.S.A 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 FCC Registration / Designation Number: 198487 / TW2021 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. 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. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, 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. Unless specific mention, the uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification. Report No.: RFBIDE-WTW-P20090710-2 Page No. 2 / 55 Report Format Version: 6.1.1 Table of Contents Release Control Record .................................................................................................................................. 4 1 Certificate of Conformity ...................................................................................................................... 5 2 Summary of Test Results ..................................................................................................................... 6 2.1 Measurement Uncertainty ................................................................................................................... 6 2.2 Modification Record ............................................................................................................................ 6 3 General Information .............................................................................................................................. 7 3.1 General Description of EUT ................................................................................................................ 7 3.2 Description of Test Modes ................................................................................................................... 9 3.2.1 Test Mode Applicability and Tested Channel Detail ........................................................................... 10 3.3 Description of Support Units ............................................................................................................. 12 3.3.1 Configuration of System under Test .................................................................................................. 12 3.4 General Description of Applied Standards and References .............................................................. 13 4 Test Types and Results ...................................................................................................................... 14 4.1 Radiated Emission and Bandedge Measurement ............................................................................. 14 4.1.1 Limits of Radiated Emission and Bandedge Measurement .............................................................. 14 4.1.2 Test Instruments ................................................................................................................................ 15 4.1.3 Test Procedures ................................................................................................................................. 16 4.1.4 Deviation from Test Standard ............................................................................................................ 16 4.1.5 Test Setup .......................................................................................................................................... 17 4.1.6 EUT Operating Conditions ................................................................................................................. 18 4.1.7 Test Results ....................................................................................................................................... 19 4.2 Conducted Emission Measurement .................................................................................................. 34 4.2.1 Limits of Conducted Emission Measurement .................................................................................... 34 4.2.2 Test Instruments ................................................................................................................................ 34 4.2.3 Test Procedures ................................................................................................................................. 35 4.2.4 Deviation From Test Standard ........................................................................................................... 35 4.2.5 Test Setup .......................................................................................................................................... 35 4.2.6 EUT Operating Condition ...........................................................…

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Reference No.: RFBIDE-WTW-P20090710 Page No. 1 / 5 PHOTOGRAPHS OF THE TEST CONFIGURATION CONDUCTED EMISSION TEST (Mode A) Reference No.: RFBIDE-WTW-P20090710 Page No. 2 / 5 CONDUCTED EMISSION TEST (Mode B) Reference No.: RFBIDE-WTW-P20090710 Page No. 3 / 5 RADIATED EMISSION TEST <Frequency Range below 1GHz> Reference No.: RFBIDE-WTW-P20090710 Page No. 4 / 5 RADIATED EMISSION TEST <Frequency Range 1~18GHz> Reference No.: RFBIDE-WTW-P20090710 Page No. 5 / 5 RADIATED EMISSION TEST <Frequency Range above 18GHz>