The Yealink YHS36 E2 is an over-the-head analog wired headset designed for office professionals, SOHO users, and call center staff. Featuring a QD (Quick Disconnect) connection, it is fully compatible with Yealink's enterprise IP phones. The YHS36 E2 helps users stay focused and reduces listening fatigue. With its ergonomic build and soft leather ear cushions, it provides all-day wearing comfort for intensive communication needs.Features:Plug-and-playRJ9 connectivity to certain Yealink IP Phones HD Voice/Wideband speaker performanceNoise-canceling microphone and passive noise cancellation Active Protection technology safeguards users from acoustic injury300° bendable boom arm for easy adjustment without breaking Benefits:Perfectly Compatible with Yealink Phones - Runs right out of the box, a QD to RJ9 plug-and-play setup makes the connectivity to Yealink IP phones. The phones can automatically optimize acoustic parameters for your YHS36 E2. A perfect match with Yealink desk phones gives you optimized audio quality.Noise-Canceling Microphone - The noise-canceling microphone allows for the greatest reduction of outside noise so that the listeners can focus more on the desired sound at hand. The nearby talkers are protected with most call privacy as well.Unparalleled Audio Experience - Made for calls and music, this conference headset is kitted out with wideband HD audio technology and passive noise cancellation that ensures a richer and cleare conversation and eliminates background noises as well.