Club sound redefined. The Signature Pulse shows that you don't have to do without reference sound quality in the club. The dynamic 50 mm drivers provide enough power to deliver that intense bass feeling. Ultrasone's S-Logic 3 natural surround sound and ULE (Ultra-Low Emission) radiation reduction technologies contribute to a comfortable and safe listening experience. Decorated with a bronze nameplate, the headphones are made of faux leather and durable plastic, giving you the comfort and flexibility you need for more than just DJ work.