State-of-the-art wireless headphone technology delivers unprecedented sound quality. Dynamic 2-way speakers bring every beat to life - featuring richer bass, exceptional sound clarity, and a better balance Intelligent Active Noise Cancellation (ANC) lets you choose between noise-canceling headphones and fully customizable ambient noise seam switching. So let the outside world inor keep it out. Long-lasting battery, about 4 hours of continuous use, plus about 10 hours of additional use with the wireless earphone charging case. Talk time: 4 hours Headset auto-switching recognizes the most urgent situation and switches to the device. Are you watching a series on your tablet when your friends call you on their phone? Just pause the radio and listen. This wireless headset is equipped with a microphone to ensure that all calls are crystal clear.