The Plantronics EncorePro HW540 with Mute Button, Noise-Canceling Microphone, Compatible with Avaya Phones is an all-new generation of headsets for customer service centers and offices, designed for the future, and built on experience. Three innovative models deliver greater comfort for all-day wearing, superior noise-canceling for clearer calls, and increased reliability so conversations can continue without worry. ✅ Avaya Compatibility: Avaya J139, J169, J179, 1608,1616, 9610, 9620, 9620L, 9620C, 9630, 9630G, 9640, 9640G, 9650, 9674
