When you choose the Yealink UH34 Duo Lite headset, you select a device with a variety of features that enhance your audio experience to the level of a face-to-face interaction. The powerful unidirectional microphone with passive noise cancellation transmits your words clearly and naturally while reducing background noise, ensuring that only your voice is understandable to others. Full-range speakers ensure that you can hear your conversation partners clearly, making it feel as if they are right there with you. Prioritizing user hearing protection, Yealink has incorporated ActiveProtection technology, a feature that limits the decibel level to safeguard users' hearing from noise spikes that can occur during a call.