From Marshall
• [Active Noise-Cancelling] Monitor II A.N.C. headphones utilise advanced active noise cancelling technology that continuously pinpoints and measures ambient noise in order to block out the things you don't want to hear. Now you can focus on what matters most - the music. • [Iconic Sound] Delivering high performance sound like you've never heard before. Monitor II A.N.C. headphones feature custom tuned 40 mm dynamic drivers that produce a superior signature sound only Marshall can deliver. • [Marshall Bluetooth App] Personalise your settings and access everything the Monitor II A.N.C. headphones have to offer.