If your music is on, that's all that matters. The JBL Tune 770NC wireless headphones with adaptive noise cancellation fully deliver on that promise, without distracting you. With a battery life of up to 70 hours, you can easily get through a busy work week and still have enough JBL Pure Bass Sound for the weekend. And if you need a quick charge, a 5-minute charge will give you 3 hours of extra music. The lightweight and foldable JBL Tune 770NC can connect to two Bluetooth? devices at once, so you never miss a call while watching a movie on your tablet. With the free JBL Headphones app you can tailor the sound to your preferences. And voice prompts in your language guide you through the functions. Effortlessly manage your calls and voice assistant from your phone and use VoiceAware to hear yourself when you speak. Choose the color that suits you best and enjoy.