Brand Sony Colour Black Ear placement Over Ear Form factor Over Ear Impedance 325 Ohm About this item Sony’s lightest Wireless Noise-canceling headband ever Take noise canceling to the next level with Sony’s Integrated Processor V1, so you can fully immerse yourself in the music Super comfortable and lightweight design Adjustable Ambient Sound mode and Adaptive Sound control features tailors sound to suit the environment around you Up to 35-hour battery life with quick charging (3 min charge for up to 1 hour of playback)