Sound
I use headphones exclusively at home and connect to a Mac - in this case everything is great, the sound is 9 out of 10 points - the sound is balanced, the bass is more natural and not as pronounced as "shaking" as on sinhas (although I would not refuse such ones), in general presses normally and it is ideal for electronic music - a very good stage and a "meaty" sound.
Wireless mode
I also doubted whether to take bluetooth or radio, like in radio headphones from some manufacturers a custom protocol that provides a wider bandwidth, but if you do not listen to lossless, there is absolutely no difference.
Before that, there were radio headphones from a well-known brand and they had a drawback - a slight hiss in the headphones when the music was turned off, there is no such thing at all, perfect silence (practically, when connected via bluetooth, there is a very light background, but it is imperceptible, probably this is noise reduction) .
The control buttons are rather inconvenient.
Wired Mode
Although I heard many times that there is a huge difference in sound between apt-x / aac and sbc, but again - in fact, listening to music in normal bitrate through iTunes, I didn’t notice the difference between wired and without wired, probably the difference will be if you listen to lossless.
Also, in wired mode, the headphones do not seem to waste a charge.
Assembly
Well, it's just ecstasy - weighty headphones, nothing creaks, the packaging is just trash - both the box and the case. The wire is also cool, fabric and pleasant.
Ear pads
The earbuds are fairly snug and the ear cushions are compact and will probably not completely cover the ears of those with very large ears; but with normal ears.
The ear cushions are "type" leather (or actually leather) and the ears sweat a little after a long listening session, I would change to fabric ones.