I have to say about the device itself, that I was very surprised that it is processed as solid for this price range.
Clear is a plastic Bomber, but are just light and shadow, I would classify it here as partial shade.
I can pair it with no problems by BT on my iMac from 2007.
It has been recognized directly and the music was transferred from iTunes directly to the headphones.
The controls on the right Köpfhörerteil respond directly and allows you to fully access all functions speaks: First Back of securities, phonetic Quiet button, Pause and Play.
Play / Pause also serves simultaneously as an off button
What I have noticed positive that you can move the headband flexible to a certain extent so that, if one so an Egg like me but can not find a passable position.
They are my "first own" over-ear headphones. I can only compare to the Bose On Ear and B & W P3 to use and realize that it for bus trips or when flushing absolutely is okay. The music is of course as mentioned base-heavy, but for lovers of such music, it is less disruptive.
One should be aware that no device of a renowned manufacturer with Power Marketing and Blablabla promise you can buy, but a solid, base-heavy device which brings the liberties of BT with and disturbing for listening without other and enjoy cable clutter can.
I give five stars because it is absolutely sufficient for my needs, and above all for the price of just 40
Battery life of course I can not test, because I have the headphones only just unpacked.
Addendum: It works on Android 4.4 KitKat on HTC ONE M7 properly. Coupling, YouTube, Music Play all operate. Pause before, return and works flawlessly.