The best sound, wherever you are. With our modern devices, 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 powered through the headphone outputs of smartphones and laptops without losing its reference quality. 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 silver nameplate, the headphones are made from vegan leather and durable plastic for those on the move and who want a natural sound.