The ELBE ABTWS-005-B wireless headphones feature Active Noice Cancelling (ANC) or Active Noise Cancelling which basically eliminates ambient noise and focuses on the most important thing: your music. These fantastic headphones offer a faster and more stable connection and guarantee high sound quality up to 10 metres in length thanks to the Bluetooth version 5.0 technology. Simply take the left and right headphones out of the charging box and they will be connected together in seconds. The charging station has a built-in 300mAh battery, which allows you to charge the headphones up to 3 times and automatically charge once placed in the case.