InEuropean Union countries, use only external speakers, microphones, and headsets that are fully compliant
withthe EMCDirective [89/336/EC].
Caution

Headset Safety

Whenusing a headset, set the Cius volume to a safe level. Permanent hearing loss or damage may occur if
headsetsare used athigh volume.
Donot use a headset at high volume to block out other noise. Lower the volume if you cannot hear people
speakingnear you.
Ifyou experience ringing in your ears, muffled voices, or other signs of hearing loss or damage, stop using
yourheadset and have your hearing checked.
Avoidusing a headset while operating a vehicle. Using a headset while operating a vehicle can be distracting
anddangerous, and is illegal in some areas. Likewise, avoid using a headset while performing any activity
thatrequires your undividedattention.

Bluetooth Wireless Headset Performance

CiscoCius supports BluetoothClass 2 technologywhen the headsets supportBluetooth. Bluetooth enables
low-bandwidthwireless connections within a rangeof 30feet (10 meters).The best performanceis in the3-
to6-foot (1- to 2-meter) range. You can connect up to five headsets, but only the last one connected is used
asthe default.
Becausethere can bepotential interference issues, itis recommendedthat you move 802.11b/gdevices,
Bluetoothdevices, microwave ovens, and largemetal objects away from the wireless headset.
Fora Bluetooth wireless headset to work, it does not need to be within direct line-of-sight of the phone. Some
barriers,such aswalls or doors, and interference from other electronic devices can affect the Bluetooth
connection.
FCC Compliance Statements
TheFederal CommunicationsCommission requires compliance statements for thefollowing:
• FCC Part 15.21
• FCC Receivers and Class B Digital

FCC Part 15.21 Statement

Changesor modifications not expressly approved by the party responsible for compliance could void the
user’sauthority to operate the equipment.

FCC Receivers and Class B Digital Statement

Thisproduct has been tested and complies with the specifications for a Class B digital device, pursuant to
Part15 ofthe FCCRules. These limits are designedto provide reasonableprotection against harmful
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Product Safety Security Accessibility and Related Information
Headset Safety