Summary: Sony produce great electronic products however, failed a little short on this wireless headphone model. Static output even at close proximity of base can be heard. It has a 4 channel frequency adjustment switch that makes no significant difference. If you position your head just right you could achieve a quality signal and eliminate the static discharge.
Summary: Wireless are never going to be as good as standard wired headphones. That's a fact. With some adjustment these headphones produce a very good sound. My wired Koss Titaniums produce oustanding sound! I like how the Sony Wireless easily are placed on their stand and charge. Excellent design. I like that they automatically shut off when taken off. They are comfortable. They are about as good as RF wireless gets.