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NC-40 USER GUIDE_2015 ED4 P.indd 3
fold
All manuals and user guides at all-guides.com
Getting Started
1. The battery compartment is located on the right earpiece, release the catch at the bottom
of the compartment and insert the AAA battery (Included) and then click the compartment
closed. For optimum performance we recommend good quality alkaline batteries, which
should allow playback for up to 30 hours.
2. Connect the supplied audio cable to your audio device and to the audio port located at the
bottom of the left earpiece.
3. The headphones can be adjusted by extending/retracting the arms on both sides.
Operation
The mode selection switch is located at the bottom of the
right earpiece; this allows you to choose between passive
and noise cancelling modes.
OFF: Passive mode
ON: Active noise cancellation mode provides up to 16dB
of noise cancellation.
In addition, the NC-40 feature a handy volume dial, also
located on the right earpiece, which allows you to adjust
the volume level independently of your audio source device.
Storage
To store the NC-40s in the supplied carry bag, remove the audio cable and then retract the
headphone arms. Now hold the headband and push the earphones towards the centre of the
headband until they fold as shown below. We recommend that the batteries are removed from
the NC-40s if you expect to store them for a long time.
Safety
Check the volume level before placing the headphones onto your ear
Do not listen to the headphones at high volume for excessive periods as this may damage your hearing
Discontinue use if you experience any discomfort or irritation from using the headphones
These headphones must not be worn whilst driving a vehicle oroperating heavy machinery
We do not recommend you wear the headphones while walking or running in areas of heavy traffi c
Accessories
Carry case
Flight adapter
Audio cable, 1.2m
AAA
6.3mm
adapter
battery
13/07/2015 13:51
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