OVERVIEW: Your music, noise free: When your music is on, nothing else matters. The JBL Tune 770NC Adaptive Noise Cancelling wireless headphones deliver on that promise all day—and longer, while sparing you the unwanted noises. With up to 70 hours of battery life, you’ll easily get through a busy week of using them and still have enough JBL Pure Bass Sound to get you through the weekend. And if you do need a quick recharge, 5 minutes gets you an extra 3 hours of music. Lightweight, and...