T2C-WHB670DECT Wireless Headset

DECT Wireless Headset Quick Start Guide V1.0 Yealink Documentation support.yealink.com WH67 （WHB670 and WHM631 Package Contents Base Headset Quick Start Guide We recommend that you use the included accessories, and other accessories may have compatibility issues that prevent them from working properly. Yealink provides a USB device manager client - Yealink USB Connect, you can download it on the Yealink website support.yealink.com. Power Adapter Micro USB-A to USB-C USB2.0 Cable 1.0M Micro USB-A to USB-A USB2.0 Cable 1.0M Busylight BLT60 (Optional) L R L R L R L R EarGels EarHooksHeadband Neckband Busylight BLT60 How to Connect How to Charge the Mobile Phone and Headset How to Wear EarHooks Neckband Headband How to Use Volume Up Button Before using the Teams button functions, you should install the Microsoft Teams client on your PC. Call Control Button 2 3 1 4 Touch Screen Volume Down Button No.ItemAction & Function 1Touch Screen • Display phone's system status. • Tap to select and highlight touch-sensitive screen items. 2Call Control Button • Press to answer, reject, or end a call. • Hold 2 seconds to activate Cortana (this requires Microsoft's support). • Press to invoke the Teams client in the idle state. 3Volume Up ButtonPress to turn up volume. 4Volume Down ButtonPress to turn down volume. We sincerely recommend you to use Yealink Ticketing system (https://ticket.yelink.com) to submit all your technical issues. Regulatory Notices Operating Ambient Temperatures • Operating temperature: +32 to 104°F (0 to 40°C) • Relative humidity: 5% to 90%, noncondensing • Storage temperature: -22 to +160°F (-30 to +70°C) Warranty Our product warranty is limited only to the unit itself, when used normally in accordance with the operating instructions and the system environment. We are not liable for damage or loss resulting from the use of this product, or for any claim from a third party. We are not liable for problems with Yealink device arising from the use of this product; we are not liable for financial damages, lost profits, claims from third parties, etc., arising from the use of this product. Explanation of the symbols • DC symbol is the DC voltage symbol. • WEEE Warning symbol To avoid the potential effects on the environment and human health as a result of the presence of hazardous substances in electrical and electronic equipment, end users of electrical and electronic equipment should understand the meaning of the crossed-out wheeled bin symbol. Do not dispose of WEEE as unsorted municipal waste and have to collect such WEEE separately. Restriction of Hazardous Substances Directive (RoHS) This device complies with the requirements of the EU RoHS Directive. Statements of compliance can be obtained by contacting [email protected]. Safety Instructions Save these instructions. Read these safety instructions before use! General Requirements • Before you install and use the device, read the safety instructions carefully and observe the situation during opera- tion. • During the process of storage, transportation, and operation, please always keep the device dry and clean, avoid collision and crash. • Please attempt not to dismantle the device by yourself. In case of any discrepancy, please contact the appointed maintenance center for repair. • Please refer to the relevant laws and statutes while using the device. Legal rights of others should be respected as well. Environmental Requirements • Place the device at a well-ventilated place. Do not expose the device under direct sunlight. • Keep the device dry and free of dust. • Do not place the device on or near any inflammable or fire-vulnerable object, such as rubber-made materials. • Keep the device away from any heat source or bare fire, such as a candle or an electric heater. Operating Requirements • Do not let a child operate the device without guidance. • Do not let a child play with the device or any accessory in case of accidental swallowing. • Please use the accessories provided or authorized by the manufacturer only. • The power supply of the device shall meet the requirements of the input voltage of the device. Please use the provided surge protection power socket only. • Before plugging or unplugging any cable, make sure that your hands are completely dry. • Do not spill liquid of any kind on the product or use the equipment near water, for example, near a bathtub, wash- bowl, kitchen sink, wet basement or near a swimming pool. • During a thunderstorm, stop using the device and disconnect it from the power supply. Unplug the power plug and the Asymmetric Digital Subscriber Line (ADSL) twisted pair (the radio frequency cable) to avoid lightning strike. • If the device is left unused for a rather long time, disconnect it from the power supply and unplug the power plug. • When there is smoke emitted from the device, or some abnormal noise or smell, disconnect the device from the power supply, and unplug the power plug immediately. • Contact the specified maintenance center for repair. • Do not insert any object into equipment slots that is not part of the product or auxiliary product. • Before connecting a cable, connect the grounding cable of the device first. Do not disconnect the grounding cable until you disconnect all other cables. Battery Requirements • Do not immerse the battery into water, which could short-circuit and damage the battery. • Do not expose the battery to an open flame or leave the battery where it could be subjected to extremely high temperatures, which could cause the battery to explode. • Do power the handset off before removing the battery. • Do not try to use the battery for the power supply of any device other than this handset. • Do not open or mutilate the battery, released electrolyte is corrosive and may cause damage to your eyes or skin. • Use only the rechargeable battery pack delivered with the handset or those rechargeable battery packs expressly recommended by Yealink. • Defective or exhausted batt…

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YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. 309, 3rd Floor, No.16, Yun Ding North Road, Huli District, Xiamen City, Fujian, China Tel: 86-592-5702000 Fax: 86-592-5702455 Email: [email protected] QA-FR-170-B 7/29/2014 FCC Authorization Date: 2020-10-20 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD., the undersigned, hereby authorizes Bay Area Compliance Laboratories Corporation to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratories Corporation on our behalf shall have the same effect as our own action. We, 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. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature: Stone Lu Vice General Manager

YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. 309, 3rd Floor, No.16, Yun Ding North Road, Huli District, Xiamen City, Fujian, China Tel: 86-592-5702000 Fax: 86-592-5702455 Email: [email protected] FCC Confidential Authorization Date: 2020-10-20 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: T2C-WHB670 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. hereby requests long-term confidential treatment of information accompanying this application as outlined below:  Block Diagram  Schematics  Operation Description As well as short-term confidential treatment of information accompanying this application for a period of 180 days after grant is issued as outlined below:  Internal Photos  User’s Manual  External Photos  Test Set-up Photos The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature Stone Lu Vice General Manager

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 1 of 5 EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 2 of 5 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 3 of 5 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 4 of 5 Adapter 1 (Model: YLPS122000B1-US) Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 5 of 5 Adapter 2 (Model: YLPS122000C1-US)

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 1 of 1 EXHIBIT A - FCC ID LABEL AND LOCATION FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 1 of 8 EXHIBIT C - EUT INTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 2 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 3 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 4 of 8 DECT ANT 1 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 5 of 8 BT ANT Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 6 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 7 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200903007-RF Page 8 of 8 DECT ANT 0

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200903007-00A FCC Part 15D Page 11 of 54 §1.1307 (b) (1) & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) Applicable Standard According to FCC §15.319(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for Maximum Permissible Exposure (MPE) (§1.1310, §2.1091) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minute) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *(100) 30 1.34-30 842/f 2.19/f *(180/f\2\) 30 30-300 27.5 0.073 0.2 30 300-1500 / / f/1500 30 1500-100,000 / / 1.0 30 f = frequency in MHz * = Plane-wave equivalent power density MPE Calculation Predication of MPE limit at a given distance S = 2 4R PG  Where: S = power density (in appropriate units, e.g. mW/cm 2 ); P = power input to the antenna (in appropriate units, e.g., mW); G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna (appropriate units, e.g., cm); Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200903007-00A FCC Part 15D Page 12 of 54 Mode Frequency (MHz) Antenna Gain Maximum Tune- up power Evaluation Distance (cm) Power Density (mW/cm 2 ) MPE Limit (mW/cm 2 ) (dBi) (numeric)(dBm)(mW) DECT 1921.536 - 1928.448 0 1 20.5 112.2 20 0.022 1.0 Bluetooth 2402-2480 3 2 1.0 1.26 20 0.0005 1.0 Note: The Bluetooth and DECT can transmit simultaneously for this device. So the worst simultaneous transmitting consideration: The ratio=MPE BT /limit + MPE DECT /limit =0.0005/1.0+0.022/1.0 =0.0225＜1.0 To maintain compliance with the FCC’s RF exposure guidelines, place the equipment at least 20cm from nearby persons. Result: Pass

Note: This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “★”. BACL is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. FCC PART 15D MEASUREMENT AND TEST REPORT For YEALINK(XIAMEN) NETWORK TECHNOLOGY CO., LTD. 309, 3rd Floor, No.16, Yun Ding North Road, Huli District, Xiamen City, Fujian, China FCC ID: T2C-WHB670 Report Type: Original Report Product Type: DECT Wireless Headset Re port Number: RSZ200903007-00A Re port Date: 2020-12-24 Reviewed B y: Jacob Kong RF Engineer Prepared By: Bay Area Compliance Laboratories Corp. (Shenzhen) 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200903007-00A FCC Part 15D Page 2 of 54 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 LOCAL SUPPORT EQUIPMENT LIST AND DETAILS ........................................................................................................ 6 EXTERNAL I/O CABLE .................................................................................................................................................. 7 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 8 SUMMARY OF TEST RESULTS ............................................................................................................................... 9 TEST EQUIPMENT LIST ......................................................................................................................................... 10 §1.1307 (B) (1) & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) .......................................................... 11 APPLICABLE STANDARD ............................................................................................................................................ 11 MPE CALCULATION................................................................................................................................................... 11 FCC§15.317 & §15.203 - ANTENNA REQUIREMENT ......................................................................................... 13 APPLICABLE STANDARD ............................................................................................................................................ 13 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 13 FCC§15.315 & §15.207 - CONDUCTED EMISSIONS ............................................................................................ 14 APPLICABLE STANDARD ............................................................................................................................................ 14 EUT SETUP ................................................................................................................................................................ 14 EMI TEST RECEIVER SETUP ....................................................................................................................................... 14 TEST PROCEDURE ...................................................................................................................................................... 15 CORRECTED FACTOR & MARGIN CALCULATION ....................................................................................................... 15 TEST DATA ................................................................................................................................................................ 15 FCC§15.323 (A) - EMISSION BANDWIDTH .......................................................................................…

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Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200903007-00A Page 1 of 1 EXHIBIT D - TEST SETUP PHOTOGRAPHS Conducted Emissions - Front View Conducted Emissions - Side View