- Enjoy your one-man party with Belkin - thanks to 40 mm drivers, so you can get lost in the sound of your music - Let your voice be heard crisp and clear over calls with the built-in mic and Clear Call technology - Its Active Noise Cancelling shuts off the chaos around you for an immersive audio experience - Switch to Isolate Effect to have a moment of calm and relax to peaceful sound of ocean waves - With up to 60 hours of battery life, you'll have enough juice to listen for days - The super handy earcup controls let you control your music or incoming calls