Of the two BATTERY come each 1 in every listener. For this, the upholstery is easy done, inserted battery and pads back on it. After that, the batteries can be easily recharged via the charging / transmitter station. Is even factory some juice on it, so you can immediately after the assembling test ever ... :) In my case the battery never went empty, so I can not tell you how long do they last, unfortunately. However, the operation is also possible with normal AA batteries.
Connection is via 3.5mm jack on the audio source and RCA connectors on the transmitter unit.
There are 3 frequencies that can be set on the charging station. The set is then sought from the headset by pressing a button itself.
The range in buildings is okay. With thick walls about 35-45 meters.
The noise, as has been noted in many other critics, has emerged also with me. But can be easily minimized by increasing the volume of the sound source and reduces the headphones. This noise is just as normal for analog radio transmission systems, that is certainly not a quality defect o. Ä.
The volume itself is infinitely adjustable and also for "hard of hearing" loud enough adjustable.
The bass is just great; not only in music via PC, but also on TV.
Even the stereo sound, as it is extremely used in some songs is well reproduced with these headphones.
WEIGHT:'ve also read on the net a criticism that the listener will be too heavy. Well, I do not ... The weight is in my opinion good bearable. ;)
The processing of charging / transmitter station and headphones are good. Everything fits, nothing wobbles or is somewhere above.
But 2 tiny flaws on this product I still noticed:
For placing the headphones on the charging station is a little "flair" necessary until they are seated properly. The correct sitting is then indicated by a charging indicator on the station.
This charging indicator shows precisely that is loaded, but not whether the battery "full" or not yet. If the listener but charged a few hours, they should again long enough supply "listening pleasure".
So from me it a strong buy recommendation. Good equipment at a great price. Of course there are better for 100, 200 or 300 euros; but, well, yes must not be ...
For questions about or criticism concerning my criticism write just once ^^
