Bought the Musikman headphones for my mother. You want to listen to the radio at work, but is designed so that in an office with a colleague as difficult. In a short test I have to say, he has inspired me. Materials and workmanship, I give a 2 Den on the side where the auxiliary output is the plastic creaks when you press on it there while holding It is not too big and is comfortable to wear. Radio reception had been at my house no problem. Search stations and you can then even run through the rooms without interference / noise sounds. SD card function has not been tested by me.