Dual Ear 2.5mm Call Center Headset with Volume Control and Mute function for AT&T phones Lightweight over the head, Soft leatherette ear cushion for all-day comfort Flexible Long-lasting metal microphone boom and adjustable headpiece Built-in Acoustic Shock Protection, to prevent electric overload 5ft Quick disconnect cord with volume control, mute and 2.5mm Connector Great sound, Comfort, Durability, Compatible with AT&T (not included cordless) phones with 2.5mm headset jack