Yealink WHB620, WHD622, WHM621 DECT Wireless Headset

Regulatory Notices

Operating Ambient Temperatures

• Operating temperature: +14 to 122°F (-10 to 50°C)
• Relative humidity: 5% to 90%, noncondensing
• Storage temperature: -22 to +160°F (-30 to +70°C)

Warranty

Yealink's product warranty is limited to the unit itself when used normally. Yealink is not liable for damages or claims arising from the use of this product or from third parties.

DC Symbol

The DC symbol represents the DC voltage.

Restriction of Hazardous Substances Directive (RoHS)

This device complies with EU RoHS Directive requirements. For compliance statements, contact support@yealink.com.

Safety Instructions

• Read and save all safety instructions before use.
• Follow basic safety precautions to reduce risks of fire, electric shock, and injury.
• Keep the device dry and clean during storage, transportation, and operation.
• Avoid collision and crashing the device.
• Do not bend or over-bend cables.
• Disconnect from power during thunderstorms.
• Disconnect from power if the device is unused for extended periods.
• If smoke, abnormal noise, or smell is detected, disconnect power immediately and contact a maintenance center.
• Do not insert foreign objects into slots.
• Connect the grounding cable first before other cables.

Cleaning Requirements

• Disconnect power before cleaning.
• Use a soft, dry, anti-static cloth.
• Keep the power plug clean and dry.

Environmental Recycling

Dispose of the device according to local environmental regulations. Components may be recycled.

Troubleshooting

• Unit cannot supply power: Check cable connection, try a different wall outlet, ensure the environment is within operating temperature range, and verify correct cable and power supply are used. Clean ports if dusty.
• Bad connection: Clean the plug with a dry cloth. Connect to another wall outlet.
• Environment out of operating temperature range: Use within the specified temperature range.
• Incorrect cable connection: Ensure the correct Yealink device cable is used and connected properly.
• Dust in port: Clean the port.

Contact your dealer or authorized service facility for further assistance.

FCC Caution

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

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.

IMPORTANT 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.

ISEDC Warning

This device complies with Innovation, Science, and Economic Development Canada licence-exempt RSS standard(s). 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.

Le présent appareil est conforme aux CNR d' Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil nedoit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Radiation Exposure Statement

For Base: This equipment complies with FCC and IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body.

For Headset: The device has been tested and comply with FCC and IC SAR limits.