Switching the Active noise compensation on and off
Inserting the batteries
The ON/OFF switch for the power supply of the
NoiseGard
®
circuitry is located on
the battery compartment. When power is switched on, a green LED lights up.
When the power supply is switched off or when the batteries go flat the headphone
works like an ordinary headphone
without noise compensation
.
As the microphone is connected to the aircraft´s internal power supply, it does not
depend on the batteries and will remain in operation should the batteries fail.
on/off
LED
Cat. No. 03553
Hygiene pads
(Accessories, not included in the scope of delivery)
Summary of Contents for HMEC 45-CA NoiseGard
Page 5: ...Adjusting the headband...
