Soho 45's Hybrid active noise cancelling wireless headphonesIntroducing the Soho 45's Hybrid active noise cancelling wireless bluetooth headphones Good quality sound is what the Soho 45's are all about. Featuring a Hybrid noise cancelling technology, this just means that beyond the active noise cancellation feature, these headphones have been designed with only aesthetics, comfort, and great audio in mind. Once you've tried the 45's you'll never want to go back. The 45's give you up to 60* hours of playback