This is the third wireless headset that I buy myself. The first was a Sennheiser also bought there at least 10 years. Then a Philips cheap. Whenever I had problems dropping out, crunches and other unseemly noises, let alone interference, especially with my wireless speaker system for the DVD of the show. With the passing high frequency (2 GHz), this time we solve these problems. More noise, more dropouts, more interference, but the mu-so-that. In addition, with the Sennheiser sound quality. The super bass to listen to rock, surround for action movies, and pure in pure classical music. A little pricey but a European investment worthwhile for walkman music lovers. Santa thank you !!