I received a pair of BOSE noise cancelling Head Phones as a sales incentive. I own the BOSE 123 system and the WAVE radio/CD player.  The headphones definitely lived up to my expectations!  I've used these when traveling for business & had a great relaxing ride. The experience was pure "silence" . The ear pieces are extremely comfortable & they are very lightweight.  I would recommend these to anyone looking for a gread pair of noise cancelling head phones. I've tried other brands & none of the others live up to these.  The sound quality is excellent - I could hear EVERY instrument distrinctly. ...