The over-ear speaker cups of the Sandberg Wireless Headset ANC+ENC Pro ensure supreme comfort for hours of nonstop use. Speech and music are reproduced in high quality with solid bass and clear treble. It connects wirelessly to a Bluetooth device, such as a computer, smartphone, or tablet. You can use the buttons on the headset to switch tracks, turn the volume up or down, and activate or deactivate the microphone. The built-in ANC function (Active Noise Cancellation) guarantees excellent, undisturbed sound, regardless of whether you're in a noisy office or surrounded by consistent engine noise on a plane or train. The flexible microphone with ENC (Environmental Noise Cancellation) gives optimum voice pickup with no background noise - perfect for online meetings and gaming for example. The built-in battery is easy to charge via USB-C, and gives up to 24 hours of use on a single charge.