Technically complex, but others create more with less!

I like bass, but what ejects these headphones with the intgrierten amplifier atrocious and damage hearing. If the "fixed" internal batteries are empty, the headphones still be operated without amplifier, the sound is then not bad, but not great. Although with amplifier comes across a super bass, but which can cause headaches at higher volumes in a short time. The highs and mids go completely under. My Koss Porta Pro provides a better outcome for 1/10 of the price.
The headset can be worn comfortably, but you get with big ears space problems. The
Remote control of the Apple device works well, only had a knob so loose that it rattled during head movements. The LED lighting is funny but sinnfrei. The processing could be improved for this price range. Positive I would replaceable Kopfhöhrerkabel values.