DUAL NOISE-CANCELING MICROPHONES SMOOTH COMMUNICATIONS, EXPRESS IN THE BEST WAY With dual-microphones noise cancellation and Yealink Acoustic Shield technology, UH37 intelligently shields the noise and only picks up the speaker's voices. Even if in a crowded workplace, it can significantly reduce interference, allowing both sides of the call to enjoy pleasant communications. PROFESSIONAL AUDIO PERFORMANCE HEADSET ON, CONCENTRATE ON The UH37 professional headset features professional-grade 35mm speakers, superb stereo sound, and dynamic EQ (Automatic switch between call mode and music mode), giving clear sound in call mode, high fidelity in music mode. You don't miss any details, focus on the tasks, and burst with fresh ideas whether you're meeting or listening to music during work. LIGHTWEIGHT AND ENHANCED COMFORT PILLOW-LIKE TOUCH, ALL-DAY COMFORT Ultra-lightweight body, UH37 weighs about 15% less than the previous generation. From the super fitting, soft leather-wrapped headband to the pro-skin memory foam ear cushions, Yealink has adopted a more ergonomic design, bringing zero pressure on your ear even for all-day wearing. BUSYLIGHT FOR FEWER INTERRUPTIONS NO DISTURB, WHEREVER YOU WORK When you're on the call, UH37's busylight will turn on automatically, or you can turn it on manually. Block out outside distractions and begin working immersively whenever and wherever you like. USER-FRIENDLY FEATURES EASY-TO-USE, EASY-TO-WORK UH37 allows mute in two ways: by lifting the Mic-boom or by pressing the mute button. The boom's 300-degree rotation allows for left or right ear wear. This convenient and flexible design will let you feel more at ease when communicating