Forty Years of Award -Winning Acoustic Design PSB Speakers gets up close & personal with your hi-fi. Weve taken our 40 years of bringing real sound to real people & packed it into our exciting new Music for You (M4U) series of high performance headphones. You’re listening to music more than ever before, but now you can do it in comfort & style with PSB’s true-to-nature sound quality. Our new headphones bring you so close to the music. It’s like the music is meant just for you. Designed for people on the move. On a train, on a plane, from your computer to your bedroom, PSB headphones are lightweight & ready to pack up anywhere you want to go. Fold ‘em up into the protective travel case & you’ll never be far from true hi-fi listening. We even added a thoughtful touch for your comfort—dual input connections on either side of the headphones means no more crossed wires. Just plug in the cable on the left or right & be within easy reach of a headphone jack no matter where it’s situated. All of the music. None of the noise Sometimes you just want it to be just you & your music in your own personal space. Our M4U 2 Active Noise Cancelling Headphones don’t let anything come between you & enjoying your music. Thanks to PSB’s exclusive Room Feel™ technology, your music will sound so rich & natural you’ll think you’re listening to a set of high-end loudspeakers. All of the music. Non-stop The M4U 2 model features three convenient modes of operation: Active Noise Cancellation (ANC), Active Mode, & Passive Mode (without batteries). Listen all day & all night with 55 hours of run time in ANC or Active modes. When you’re out of batteries, switch to Passive Mode without missing a beat.