JBL Tune 670NC Adaptive Noise Cancelling with Smart Ambient Wireless Up to 70H Battery Life Speed Charge Lightweight Comfortable & Foldable - Blue: From the manufacturerJBL Tune 670NCThe JBL Tune 670NC Adaptive Noise Cancelling wireless headphones deliver JBL Pure Bass Sound with up to 70 hours of battery life. Lightweight and flat-folding, these headphones are customizable to your taste and needs through the free JBL Headphones app. Manage you