Lightweight, hands-free cordless headset works with corded or cordless one-line and two-line phones and multiline business systems. Offers headset volume control, one-button answer, mute, multiple connection options, sound level protection, and up to 500 feet wireless roaming distance. Includes extended battery life of 12 hours talk time. Digital cordless headset let's you choose between over-the-head, behind-the-ear, or behind-the-neck styles (all are included). Is ROHS compliant.