Sennheiser 250 instruction manual Switching NoiseGard on/off

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Switching NoiseGard on/off

To switch the NoiseGard™ 2.0 active noise compensation on or off:

Press the ON/OFF button for approx. one second. When NoiseGard 2.0 is switched on:

– the LED lights up red and

– you can listen to music and make telephone calls at the same time.

Fail safe operation When the batteries are completely discharged, the NoiseGard 2.0 active noise compensation automatically switches off. RT traffic (e.g. ATC) and intercom will still be heard through the headphones.

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Contents Hmec Contents Important safety instructions Not in use Delivery includes Hmec 250 headset Page TT Volume button TT Volume + buttonOperating elements TalkThrough buttonLED indications Inserting the batteries Connecting the headsetPreparing the headset for use Connecting a mobile telephone Connecting an additional audio player Switching between mono and stereo mode Adjusting the microphone sensitivityAttaching the cable clip Using the headsetAdjusting the headset Adjusting the volume Press the TT Volume + button Switching the TalkThrough function on/offAdjusting the volume of the TalkThrough function Switching NoiseGard on/off Replacing the batteries Folding up the headset Replacing the earpads Care and maintenanceReplacing the wind shield Accessories and spare partsGeneral data SpecificationsHeadphones Microphone incl. preamplifier Connector assignmentManufacturer declarations