Comfort
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The hat is very comfortable and it does not press even after prolonged wear. It also keeps you warm and is therefore suitable for example well for long winter walks.
Service
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The use of caps headphones is very simple: turn on and off it can be a long press of the Play / Pause button. Holding down the button after switching on even longer, the Bluetooth mode is activated and the connection to a device (if available) separately.
Now the headset is found in the Bluetooth settings of the playback device (eg smartphone) and the connection can be established.
On the right side of the cap, the controls are arranged:
On / off and Play / Pause button, Volume Up / Next Track and Volume Down / Previous Track - button.
The operation works fairly well, the buttons are covered with fabric and can be palpate quite fast.
Sound quality
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The sound quality is good, if not outstanding.
If you really want good sound quality, you should of course have recourse to a right earphone.
For my purposes (occasional Winerspaziergänge) the sound quality is always good enough.
Overall I'm really happy with the headset, however, and will keep him therefore.
Conclusion:
+ Good comfort
+ Keeps you warm
+ Easy operation
+ Good sound quality
I think the idea with the headphones in the cap absolutely awesome.
The cap has absolutely convinced me through the good comfort, ease of use and good sound quality.
I therefore give it 5 stars and a buy recommendation.
I hope I could help with the review one or the other.