Delivering improved comfort and tuning to an already impressive lineup of immersive high-fidelity musical audio. Class A/B amplification from 40mm drivers. With adaptive hybrid ANC and up to 100 hours of user-replaceable battery life it's designed for boundless listening.FeaturesUser-Replaceable Battery & Earcups100-Hour Battery LifeDynamEQaptX™ LosslessAdaptive Active Noise Cancelling7-Band Adjustable EQWear DetectMultipoint ConnectionCrafted by Hi-Fi Engineers Made for MusicOver 5 decades of engineering expertise lovingly applied to the signature hi-fi sound you can now take away from home. Our engineers agonized over every note to improve the sound from the first generation P100 and we think you’ll love the results.The Music You Love For LongerImproved comfort from a reengineered headband mean you will lose yourself in the music more. Both the battery and earpad cushions are user-replaceable with standard tools ensuring long-term use so you can enjoy the music you love for longer.Introducing DynamEQModern living calls for more flexibility for your listening but we don’t think your music deserves to suffer in any environment. DynamEQ is our brand new Dynamic adaptive equalization. By subtly adjusting bass and treble levels it keeps your music perfectly balanced at any volume so every track sounds full and natural—whether you turn it up to 11 or just need to take the edge off of your office work..Deep ListeningCrafted in London by Hi-Fi engineers for those who love music and need the highest quality playback on the move. Smart technology and premium materials combined with a replaceable battery built to power your longest journeys over and over; these headphones have everything you need to handle life’s challenges and hear your favorite songs for the first