OvisLink monaural ShoreTel Headset | Noise Canceling Call Center Headset Compatible with ShoreTel Phones | Wear on the Head, Hand Free | Rotatable Microphone place headset speaker on left or right ear Corded Call Center headset with Noise-Canceling microphone. Rotatable, flexible microphone boom allow user top place the headset speaker to left or right ear anytime. Click-Stop adjustable headband. Coiled, Tangle-less headset cord. Comes with RJ9 Quick Disconnect cord, direct connect to ShoreTel IP phone's headset jack. No need amplifier Compatible with: ShoreTel IP Phone models 665, 485G, 480G, 480, 420, 265, 230G, 230 212k and Grandstream Basic and Mid-Range series IP phones; Digium D80 IP phone Comfort for All-days wearing. 2 Years Manufacture Warranty Included!