The Clam Anc DGTL delivers high-quality audio with deep bass. The digital active noise cancellation reduces more noise than standard ANC. This way, you can fully enjoy your music by completely silencing the world. Once you take off the headphones, the music playback stops. When you put them back on, the music resumes from where you left off. 26 hours of battery life. Wireless Bluetooth functionality. Digital active noise cancelling. Ambient sound mode. Voice recognition.