Christmas present for my mother - hit

My mother (85 years) was enthusiastic about my (permanent) loan of headphones, they joined their Hifi and finally, without always being afraid to disturbance of neighbors to be able to listen to music again.
So something for the television, that would be great. Since the first headphones had now set once certain standards in sound quality and comfort (a Beyerdynamic DT880), it should be a closed headphones with good sound quality again.
And these criteria are met, the listener in the best way, but it is used only in direct visual contact handset transmitter. There the connection is best, stable, and the sound is of very decent quality.
I had initially worried that my mother, rather less technologically adept, by the operator (power on / off, volume control on each listener, accurate placement on the charger) might be overwhelmed in practice. But she is so perfectly clear and is hellauf begesitert to have now recovered again in television freedom.