What you pay for the quality of wireless transmission, it is unfortunately also what you lose in the price for sound quality. This is true for all wireless headsets to my knowledge. This helmet has therefore sound quality of a good wired headset around 40 euros which is not bad. It is comfortable, and the quality of the wireless transmission is exemplary: no audible interference in a radius of at least 5m around the transmitter. For those looking a hifi quality wireless headphones at an affordable price, it is in my opinion a very good product.