Uninterrupted Listening All Day Long with JBL Live 670NC Indulge in the extraordinary audio experience of JBL Signature Sound, conveniently packaged in the JBL Live 670NC's snug, on-ear design. When you're completely immersed in your tasks, the True Adaptive Noise Cancelling feature, boosted by Smart Ambient technology, ensures you stay undistracted. If you prefer to be attuned to your environment, you can do so effortlessly without even removing your headphones, making it easy to engage in conversations or enjoy your music.