The sound of this headset is the best thing I've ever heard of cordless headphones. Since many do not come with Wired in the same price range or even higher. However, the processing is scrap and is rather a 15 headphones equal. After a month of strap breaks through, and the cost for a headphone of 200. It may be of course that we have here is a material error but is obvious has been spared here at the expense of employees and their wages !!! AKG should even worry where they can produce their products. I now have my complaint again ordered the same at Amazon, because the sound is outstanding. Should the same thing happen again (what I believe) it was the with AKG and I will again switch to Sennheiser. Two stars are there because the sound is awesome. But that does not help when the part is broken after a month thanks Worst material processing. ADDENDUM: THE SECOND HEADSET HAS A MONTH HELD AND RE is the temple erupted in the same place !!! THAT WAS IT WITH AKG. I'm going to a quality product BUY AGAIN. CAUTION, let it alone, MATERIAL SCRAP !!!!!