Professional HD voice corded phone headset 827030QD with specific quick disconnect RJ9 headset adapter HIS cable for Avaya IP VoIP phones 1600, 9600, J100 Series model build-in headset interface Phones. It has a clear sound wide band audio and good noise cancelling microphone will bring to not only you or your audience a very clear and comfortable sound quality. That will be the beginning of a happy working day. Perfect solution for the office, call center, receptionists or homeworkers. Spare ear cushion and hook provided, hearing protection, adjustable flexible headband, broad band audio frequency, clear sound quality, enhanced noise cancelling microphone, rotatable Mic boom, light weight. The item has an extra 3.5mm headphone jack (CTIA standard) cable compatibility device with single 3.5mm Headset port, eg. smartphone iphone android, ipad mac tablets laptop and so on. It is compatible with Avaya 1600, 9600, J100 Series IP phones Model: 1608, 1616, 9601, 9608, 9608G, 9610, 9611, 9611G, 9620, 9620C, 9620L, 9621, 9621G, 9630, 9630G, 9640, 9640G, 9641, 9641G, 9650, 9650C, 9670, 9670G, J139, J159, J169, J179, J189 If you find your phone model not here and unsure compatibility, please click to the seller on the product page for one to one service. What's in the Box 1 x headset 1 x HIS adapter cable 1 x 3.5mm smartphone cable 1 x spare ear cushion 1 x clothing clip & headset hanger Adjustable headband fit any head size Ergonomic professional design, movable headband fit any head size. Adjust the headband until comfortable, gently pull the headband to slide it smoothly in or out of the support piece. High quality leather ear cushion Soft high quality leather ear cushion make you comfortable for all-day. Keep a good mood for the day Rotatable microphone boom 330 degree Lightweight Comfortable Durable, strong microphone boom 330 degree rotation enable you to find perfect position for the optimal sound quality. Enhanced noise-cancelling microphone Enhanced noise-cancelling microphone technology to reduce background noise. Provide max frequency response resulting in greater call clarity productivity and better service all round. His adapter cable The headsets with quick disconnect (qd) enabling users to walk away from telephone without taking headset off, more convenient on wearing.Allows a quick switch to different devices just have to change the bottom cord. COMPATIBILITY GUIDE Compatible with Avaya 1600, 9600, J100 Series IP phones1608, 1616, 9601, 9608, 9608G, 9610, 9611, 9611G, 9620, 9620C, 9620L, 9621, 9621G, 9630, 9630G, 9640, 9640G, 9641, 9641G, 9650, 9650C, 9670, 9670G, J139, J159, J169, J179, J189