This document provides information on the Blackwire C610 and C620 devices: - It declares that the Blackwire C610, C620, C610-M, and C620-M comply with Part 15 of the FCC rules for a Class B digital device. - The devices may not cause harmful interference and must accept any interference received. - It lists contact information for Plantronics, Inc., the manufacturer of the devices.

1. Blackwire™ C610
Blackwire C620

2. For the complete User Guide visit our website at
www.plantronics.com/support

4. DECLARA
TION OF CONFORMITY
We Plantronics, 345 Encinal Street, Santa Cruz, CA, 95060, United States, (800) 789-4971 declare under our sole
responsibility that the product Blackwire C610 and Blackwire C620. 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.
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 radio or television off and
on, the user is encouraged to try to correct interference by one or more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on another circuit.
4. Consult the dealer or an experienced radio/TV technician for help.
NOTE: Modifications not expressly approved by Plantronics, Inc. could void the user’s authority to operate the equipment.
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Plantronics, Inc.
345 Encinal Street
EU & US
Santa Cruz, CA 95060
United States
Tel: (800) 789-4971
www.plantronics.com
For full warranty details and product support contact us at www.plantronics.com/support.
©2009 Plantronics, Inc. All rights reserved. Plantronics, the logo design, Sound Innovation are trademarks or registered
trademarks of Plantronics, Inc. All other trademarks are the property of their respective owners.
Patents EM 001024681-0001; 001024681-0002; Patents Pending
83003-01 (12.09)

5. Blackwire™ C610-M
Blackwire C620-M

6. Blackwire C610-M
Blackwire C620-M

8. DECLARA
TION OF CONFORMITY
We Plantronics, 345 Encinal Street, Santa Cruz, CA, 95060, United States, (800) 789-4971 declare under our sole
responsibility that the product Blackwire C610-M and Blackwire C620-M. 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.
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 radio or television off and
on, the user is encouraged to try to correct interference by one or more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on another circuit.
4. Consult the dealer or an experienced radio/TV technician for help.
NOTE: Modifications not expressly approved by Plantronics, Inc. could void the user’s authority to operate the equipment.
X
O
O
O
Plantronics, Inc.
345 Encinal Street
Santa Cruz, CA 95060
United States
Tel: (800) 789-4971
www.plantronics.com
For full warranty details and product support contact us at www.plantronics.com/support.
O
EU & US
©2009 Plantronics, Inc. All rights reserved. Plantronics, the logo design, Sound Innovation are trademarks or registered
trademarks of Plantronics, Inc. All other trademarks are the property of their respective owners.
Patents EM 001024681-0001; 001024681-0002; Patents Pending
83003-02 (12.09)
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