Batteries - Supra NiTRO-X User Manual

When you do not use the earphones,
you can easily and safely transport them
by hanging them around your neck like a
necklace thanks to the magnetic feature
of the earphone housing.

Batteries

To get the integrated high-efficiency
batteries to perform optimally and give
them maximum service life you must not
let them become completely discharged
between charges. The NiTRO-X warns
when the battery power becomes
10% by saying "Battery low". It is now
appropriate to charge the earphones.
Do not charge the batteries at
temperature lower than -10°C or higher
than + 50°C. The batteries are fully
charged when the red led on the remote
control turns off (see section Use of the
remote control).