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Intenso O400HA Bedienungsanleitung Seite 16

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During use, a low battery level (starting at around 5% remaining capacity) is also indicated by the sta-
tus LED. In this case, it blinks red twice every 15 seconds, and you should recharge the battery soon.
When fully charged, the battery lasts for approximately 75 hours of music playback (depending on
volume, Bluetooth connection, and other factors). A 10-minute charge provides around 4 hours of
playback time. Regardless of use, the headphones automatically turn off after 12 hours. Please re-
charge the headphones every 3 months when not in use to prevent deep discharge of the battery!
You can also use the headphones in wired mode via the 3.5mm standard audio jack. In this passive
mode, no power is required, so the device will function even with a depleted battery. In this case, full
control is managed through the playback device.
Bluetooth connection (multipoint)
Before first use, the headphones must be paired with the playback device. Press the function button
for about 2 seconds to turn on the headphones. The status LED will now blink alternately blue and red,
and the headphones will be in pairing mode. For more details on pairing, please refer to the playback
device's user manual. After 30 seconds, the status LED will turn off. Once a connection is established,
the status LED will light up blue for about 15 seconds and then turn off. During each subsequent use,
the headphones will automatically pair with the previously connected device.
These headphones feature multipoint Bluetooth, allowing them to be connected to two devices si-
multaneously. Depending on the device and usage scenario, the headphones will automatically switch
between the devices. This process is determined by the connected devices, and the headphones have
no influence over the switching of connections.
To delete the devices already paired with the headphones, press and hold the volume (+) and volume
(-) buttons simultaneously for 5 seconds until the LED briefly flashes purple and the headphones turn
off. The headphones must not be connected to any device via Bluetooth during this process.
Hybrid Active Noise Cancellation (Hybrid ANC)
These headphones feature Hybrid Active Noise Cancellation (Hybrid ANC), which reduces ambient noise.
Two of the four integrated microphones, located on the outside, pick up surrounding sounds. The
processors in the headphones analyze these sounds and determine the type of anti-noise needed to
neutralize them as much as possible. The other two inner microphones monitor the sounds emitted
by the speaker and report any remaining ambient noise to the processors, allowing for more targeted
noise reduction.
Using the mode button, you can switch between ANC On, Transparency Mode, and ANC Off. When
ANC is activated, the mode LED blinks green for 15 seconds.
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