Wideband audio. New boom & microphone design for enhanced noise reduction. T-bar support & 'floating' receivers. Lightweight, stylish & modern design. Quick Call feature. Robust design & construction. Available with replaceable voice tube or noise-cancelling microphones. Black with foam ear cushions or Silver with leatherette ear cushions. Hearing-Aid compatible. Connection cable not included. For further information please call the Plantronics helpline on 0800 410014. Check compatibility at http://www.plantro.net/en/compatibility.html.