Does 3490: - seem to be too much money for a pair of headphones but turned on them, as I was extremely pleased with the last couple (siberia 840) who had the same concept (control station with built-in battery charger & bluetooth)
+ Dual batteries are included
+ Built-in battery charger in the control station
+ High quality & finish, no rubbish
+ Better sound than 840
+ Easier to change battery than 840. The cover is set using a magnet, nice solution. + Blåtand, perfect to connect the phone so that you can answer the headphones when sitting & playing & need to hear what's happening in the game.
+ Works well with glasses
-If you have a big head, it may take a while before they get out, the same as 840 for my part. Squeezes some around the ears, but it is manageable.
Do not hear any noise from these as I did in 840, but that was not disturbing me.
If you want to run optically on your PC then choose ps4 mode, not completely logical.