FCC ID: T2C-WHB660 DECT Wireless Headset

WHB660 The pictures in the guide take the Teams version as an example. Package Contents Micro USB-A to USB-C USB2.0 Cable 1.0M Micro USB-A to USB-A USB2.0 Cable 1.0M Base Mono/ Dual Headset Quick Start Guide Power Adapter WHC60 (Optional) Power Adapter Busylight BLT60

(Optional) 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. How to Connect Busylight BLT60 Please make sure to connect the base to a DC power supply, not just the USB power supply. How to Charge the Mobile Phone and Headset Dock the headset to the charging base for 30 minutes while the battery is low out of the box. How to Wear 1/2 12mm How to Replace Earmuff How to Use 1 Touch Screen Mute Button 2 3 4 5 Volume Up Button Call Control Button Volume Down Button Before using the Teams button functions, you should install the Microsoft Teams client on your PC. No. Item Action & Function Touch Screen Display phone's system status. Tap to select and highlight touch-sensitive screen items. Mute Button Press to mute or unmute microphone. Volume Up Button Press to turn up volume. Call Control Button support). Press to answer, reject, or end a call. Hold 2 seconds to activate Cortana (this requires Microsoft's Press to invoke the Teams client in the idle state. Volume Down Button Press to turn down volume. 1 2 3 4 5 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 104F (0 to 40C) Relative humidity: 5% to 90%, noncondensing Storage temperature: -22 to +160F (-30 to +70C) 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 support@yealink.com. 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-

During the process of storage, transportation, and operation, please always keep the device dry and clean, avoid Please attempt not to dismantle the device by yourself. In case of any discrepancy, please contact the appointed Please refer to the relevant laws and statutes while using the device. Legal rights of others should be respected as collision and crash. maintenance center for repair. tion. 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 battery should never be disposed of as municipal waste. Return old battery to the battery supplier, a licensed battery dealer or a designated collection facility. Cleaning Requirements Before cleaning the device, disconnect it from the power supply. Use a piece of soft, dry and anti-static cloth to clean the device. Keep the power plug clean and dry. FCC Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. Note: 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. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. IC Statement This device complies with Industry Canadas licence-exempt RSSs. Operation is subject to the following two conditions:

(1) this device may not cause interference; and

(2) this device must accept any interference, including interference that may cause undesired operation of the device. CAN ICES-3(B) Le prsent appareil est conforme aux CNR dIndustrie Canada applicables aux appareils radio exempts de licence. Lex-

ploitation est autorise aux deux conditions suivantes :

(1) lappareil ne doit pas produire de brouillage;

(2) lutilisateur de lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den compromettre le fonctionnement.NMB-3(B) Radiation Exposure Statement This equipment complies with FCC and IC radiation exposure limits set forth for an uncontrolled environment. This equip-

ment should be installed and operated with minimum distance 20cm between the radiator and your body. Cet metteur ne doit pas tre Co-plac ou ne fonctionnant en mme temps quaucune autre antenne ou metteur. Cet quipement devrait tre install et actionn avec une distance minimum de 20 centimtres entre le radiateur et votre corps. Contact Information YEALINK NETWORK TECHNOLOGY CO.,LTD. 309, 3rd Floor, No.16, Yun Ding North Road, Huli District, Xiamen City, Fujian, P.R.C YEALINK (EUROPE) NETWORK TECHNOLOGY B.V. Strawinskylaan 3127, Atrium Building, 8th floor, 1077ZX Amsterdam, The Netherlands YEALINK (USA) NETWORK TECHNOLOGY CO., LTD. 999 Peachtree Street Suite 2300, Fulton, Atlanta, GA, 30309, USA Made in China 430104001353

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200819004-RF 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)

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: chenjl@yealink.com Attestation Letter FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division Date: 2021-01-13 To:

7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam, The RF chip, model CSR8811, which installed in our product DECT Wireless Headset, Model: WHB660, FCC ID: T2C-WHB660, supports BDR, EDR( /4-DQPSK,8DPSK) and BLE function, but for marketing purpose, this chip not support the BLE function. The BLE function was disabled to use by manufacture in the software, the end user has no capability to activate it. 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: chenjl@yealink.com FCC Authorization Date: 2020-09-10 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, This authorization is valid until further written notice from the applicant. 21 U.S.C. 862. Sincerely Yours, Signature:

Stone Lu Vice General Manager QA-FR-170-B 7/29/2014

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: chenjl@yealink.com FCC Confidential Authorization Date: 2020-09-10 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-WHB660 In accordance with Sections 0.457 and 0.459 of the Commissions Rules, YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. hereby requests long-

term confidential treatment of information accompanying this application as outlined below:

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. Block Diagram Schematics Operation Description Sincerely Yours, Signature:

Stone Lu Vice General Manager