Sandberg Wireless Headset ANC+ENC is an advanced wireless headset. The built-in ANC function (Active Noise Cancellation) guarantees excellent, undisturbed sound, regardless of whether you are 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 provides you with up to 20 hours use on a single charge.