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FCC PART 15 ReGULAToRY INFoRMATIoN
DeCLARATIoN oF CoNFoRMITY
We Plantronics, 345 Encinal Street Santa Cruz, California, 95060 USA (800) 544-4660
declare under our sole responsibility that the product Blackwire C420-M headset
complies with Part 15 of the FCC Rules. Operation is subject to the following two condi-
tions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
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:
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.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
IndUSTRy Canada REGULaToRy InFoRMaTIon
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du
Canada.
Plantronics, Inc.
345 Encinal Street
Santa Cruz, CA 95060
United States
www.plantronics.com
For product support contact us at www.plantronics.com/support.
©2009 Plantronics, Inc. All rights reserved. Plantronics, the logo design, Blackwire C210-M/C220-M
and Sound Innovation are trademarks or registered trademarks of Plantronics, Inc. Microsoft is a
registered trademark of Microsoft Corporation. All other trademarks are the property of their respective
owners.
Patents U.S. D540777 and D540778
81582-03 (11.09)
Plantronics BV
South Point Building C
Scorpius 140
2132 LR Hoofddorp
Netherlands
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