16
• REAL BLUE IN
6. Charging
6.1 Charging the
headphones
The headphone is charged with a
USB charging cable.
NOTICE
Before charging, be sure that
the headphones are at the
correct operating temperature
of between -10 °C and 45 °C.
6.1.1 Charging time
Allow up to 2 hours to fully charge the
headphones.
NOTICE
A full charge of the
headphones allows up to
15 hours of use.
6.1.2 Check the headphone
battery level
While using the headphones
If connected to an Apple or Android
device, the device displays the
approximate battery level near the
upper right corner of the screen and
in the notification bar.
This displayed battery level is not
accurate. To get the real-time battery
level, use the Teufel Headphoes app
for Android or iOS.
While charging the headphones
When a headphone is connected to
a power supply, its corresponding
charging indicator glows according to
charging status.
The BT function is also available
during charging.
Battery status
0% - 20%
Slow Pulsing - red
21% - 44% Slow Pulsing - yellow
45 % - 99% Slow Pulsing - green
100%
Solid green - fades out
after one minute.