Utrasone DJ1 PRO   (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 50mm professional durable Mylar driver provides high volumes and superb isolation Zippered hard case, extra ear pads and cables and demo CD included