Overview Of The Led Indications - Sennheiser HD 4.50BTNC, HD 4.50R Instruction Manual

Product overview

Overview of the LED indications

LED indications during operation
LED
1s
2s 2s
LED indications during calls
LED
Meaning
The headphones switch on
Pairing/connecting with a device is successful
The headphones switch off
The headphones are disconnected from the
device
The headphones are outside the Bluetooth
range of the device
Pairing with a device is unsuccessful
The headphones are in pairing mode
The device is/devices are successfully cleared
from the headphones
NoiseGard is activated/deactivated
(Bluetooth connection)
The headphones are in idle mode (headphones
are paired but not connected to the device)
NoiseGard is activated
(audio cable connection with sufficient
battery life)
Meaning
Incoming call
Incoming call with an almost empty battery
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