HD 4.40BT | 7
Product overview
Product overview
Overview of the headphones
1 Headband 6 Power button
2 Ear pads 7 Multifunction button
3 Ear cups 8 Volume +/- buttons
4 NFC panel 9 Audio input
5 LED 0 Micro-USB input
Overview of pictograms
Pictograms for pressing a button
Pictogram Meaning
1x
Press and immediately release the button
2x
Press the button twice
5s
Press the button and hold for 5 seconds
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