OvisLink Corded Binaural headset for Avaya 9608 and 1611 Deskphone series All-days | Supreme Voice Quality Noise Canceling Avaya headset for IP Deskphone 1608 1616 9601 9608 and &#9989; Compatible Avaya Headset for IP Deskphone models: 1608, 1616, 9601, 9608, 9608G, 9611G, 9621G, 9641G & 9650 (for all other Avaya Phone series, like 9508, 1416 series IP Deskpohone, please choose headset model OVHS084-AVY ASIN # B00K2FPYZO) &#9989; Features with: Noise canceling microphone | Acoustic Shock Protection | RF-Shield | Premium Voice Quality | Adjustable headband | Quick Disconnect Cord | Tangle-less headset cord | Flexible microphone boom | Smooth leatherette ear cushion &#9989; Easy to use | Direct Connect to Avaya phones headset jack, no need additional adapter | No need battery | No need ACDC power adapter | All functions controlled by the telephone keypad &#9989; Two Earpieces over users ears. Very comfortable to wear and talk with it All-days. Best for people work on telephone long hours, such as call center agent, service center agent, telemarketer &#9989; Durable, comes with RJ9 coiled quick disconnect cord. 2 Years manufacture warranty included.