Note about Safe Listening Practices
Califone is proud to collaborate
with the American Speech-Language-
Hearing Association (ASHA) to promote
the safe use of personal audio products
in the classroom. These two guidelines
will help students use audio
Active Noise
Canceling
Headphone
technology responsibly:
Califone® International Inc.
1145 Arroyo Avenue, # A
San Fernando, CA 91340 USA
• Lower the volume
• Limit listening time
Toll Free 800.722.0500
Toll Free Fax 877.402.2248
Califone also recommends
using headphones with ambient
noise reducing earcups.
International
Customers call
818.407.2400
Fax 818.407.2405
califone.com
NC500TFC
For more information,
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User Manual
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December 2008
Setup & Operation
Adjusting the Headphone for Comfort
To enable the active noise-canceling system on the NC500TFC, the batteries must be installed as follows:
• Identify the left (L) and Right (R) designations located on each side of the headband. The headband
adjusts for a comfortable fit by sliding the top and side of the headband apart as seen in the photo.
• Place one hand on the top of the headband and the other hand on the side of the headband and
pull in opposite directions to adjust the size of the headband, and then, place them on your head.
• Now you can make minor adjustments to create a comfortable fit.
• Batteries are located behind the battery compartment cover on the front of the left (L) ear cup.
Identify the down arrow (picture) before attempting to open battery compartment. Do not
attempt to open the right-side (R) ear cup.
• To install the batteries, remove the battery compartment cover by pressing down lightly
with both thumbs on the battery compartment cover, and then, gently slide the removable
lid in the direction of the arrow.
Note: Pulling down aggressively on the ear cups can damage the headphone. You may want to make several small
adjustments to achieve a perfect fit. Always wear the headphones so the cable is positioned on your left.
• Insert two (2) AAA batteries in accordance with the polarity symbol (+) or (-) marked in the
battery compartment.
• Replace the battery compartment cover with the down arrow on the bottom of the ear cup.
Simultaneously press down lightly and slide the battery cap upwards to lock in place.
• To enable the NC500TFC’s noise-canceling system, turn the power switch to the on position.
Note that the power indicator LED should light green.
Travel & Storage
For protection during travel or storage, the headphone
folds flat inside its hard shell protective carrying case.
To store the headphones, do the following:
Notes
1. Identify the left (L) and Right (R) designations located
on each side of the headband.
2. Hold the headphones with two hands with the Left (L) ear
cup in your left hand. You should be able to see the power
indicator LED and the ON/OFF switch.
3. Gently turn the ear cups away from you and in opposite directions to
place the headphone in its protective carrying case. If the ear cups do not
turn, stop immediately. Forcing the ear cups may cause them to break.
4. Zip closed the carrying case to protect your headphone from damage.
• The active noise-canceling system of the NC500TFC does not remove all ambient noise. It is only
effective at reducing loudness of certain types of ambient sounds (typically in the bass frequencies).
Also, some high frequency “white”noise may be added when the noise-canceling system is active.
• Although it varies by usage, battery life averages 35 hours. With the headphone’s noise-canceling
turned on, the LED indicator will dim when approximately 30 minutes of battery life remains.
• Rechargeable batteries can be used with the headphone; however, battery life may vary. In addition,
the power indicator LED is not calibrated for rechargeable batteries, and therefore may not be a reliable
indicator of battery output.
• The in-line volume control has no effect on the noise canceling system.
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Troubleshooting
Complementary Products
No Sound
Noise Reduction Absent
• Check the headphones to make
sure the power is turned on
• Replace the batteries
• Check the connection of the headphones and the AV equipment
• Check that the AV equipment is turned on
• Turn up the volume of the headphones or the connected AV equipment
MP3 Player
Complementary Products
The NC500TFC headphone can also be used with
the Califone MP3 Player (the first model to feature
dual headphone jacks, a built-in microphone for
student podcasting, and restriction of the volume
playback to 85dB).
In addition to personal or small group sound fields in the
classroom, teachers and administrators are also turning to the
use of classroom-wide sound fields. Numerous studies verify the
educational benefits of sound field amplification systems, including
increased on-task behavior and student attention to oral instruction,
improved comprehension among ELL students, and reduced
vocal strain and fatigue for teachers.
PA-IRSYS
8102
As administrators strive to meet NCLB goals, they must also address
groups with diverse needs such as ELL, ESL and students with special
needs. Teachers need to convey audio information to students in all
of these groups in a clear, concise manner.
Recommended Jackbox
for listening centers
10-Position Stereo with
individual volume controls
The Classroom Infrared Audio System can help teachers teach and how
includes two array speakers for superior sound distribution (or an option
Array speakers (commonly seen at concerts) focus a narrow band of sou
of bouncing it off the walls in a random and confusing fashion. This enhanced sound projection improves the
critical signal-to-noise ratio, therefore improving the clarity and intelligibility of the amplified audio. Also
included are two wireless mics (one for the teacher and a hand held mic for shared student use), so all speakers in the class are
assured of being heard, even when the system is connected for teleconferencing.
1210AVPS
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