Simplified declaration of conformity
Intenso International hereby declares that these radio installation type Intenso Overear Headphone
O400HA comply with Directive 2014/53/EU. You can read the full text of the EU Declaration of Con-
formity by visiting the following site: www.intenso.de.
SCOPE OF DELIVERY
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Intenso Overear Headphones O400HA
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3.5 mm audio cable 1.5 m
Please check that the contents of the packaging are complete and undamaged (see also the illust-
ration at the start of this manual). If this is not the case, please contact the retailer or our service
department: rma@intenso-international.de
User guidelines
Product overview
1 - Mode button
2 - 3.5 mm stadard audio jack
3 - Volume (-) button / previous track
4 - Function button
5 - Volume (+) button / next track
6 - Status LED
7 - USB-C In
8 - Mode LED
Turning On and Off
To turn on the headphones, press the function button for about 2 seconds. To turn them off, hold the
function button for about 5 seconds.
Battery
The headphones feature a built-in battery. Please make sure to fully charge it before the first use. A full
charge takes approximately 2 hours. To do this, simply connect one USB-C end of the included USB-C
to USB-C cable to the headphones (USB-C In) and the other USB-C end to a suitable power source
(5V-1A). The charging process is indicated by the status LED. During charging, it lights up red; when
fully charged, the status LED turns blue.
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EN - Page 4 of 8
USB-C to USB-C cable
Operating Instructions