Utrasone PRO 750 Headphones (Discontinued by Manufacturer) S-Logic(TM) Natural Surround Sound for a more natural, lifelike sound Safer listening, less fatigue - SPL levels to the ear drum are decreased by up to 40% (3-4dB) for the same perceived loudness ULE technology with MU Metal shielding to reduce radiation by up to 98% as compared to ordinary headphones 40mm titanium plated Mylar for clear, precise sound well suited for mixing, mastering and critical listening Zippered hard case, extra ear pads and cables and demo CD included