The best sound wherever you are. With our modern tools, composing and listening to music is now location-independent, and the new Signature Natural takes that into account in a special way. With an impedance of just 32 ohms, it can be operated on headphone outputs on smartphones and laptops without losing its reference quality. Ultrasone uses S-Logic 3's natural surround sound and ULE (Ultra-Low Emission) radiation reduction technologies to ensure a comfortable and safe listening experience. Made of vegan leather and durable plastic with a silver nameplate, these headphones are designed for natural sound when you're on the move.