Serenity in open work spaces Active noise cancelling to filter out distracting sounds All-round pleasant sound experience Simultaneously connect to your computer and smartphone with the USB Type-A dongle and Bluetooth and switch with ease between them. Qi compatible for wireless charging. Simple and intuitive controls on the headphones Soft and breathable ear pads, silicone-padded headband Can also be paired with the Logitech Tune app, Cable reach of 30 metres Battery life: up to 15 hours Including USB Type-A Bluetooth dongle