Four-microphone noise canceling: The Voyager 5200 is equipped with four microphones and a unique DSP to cancel background noise such as train and car traffic and crowds, providing clear calls. Unique WindSmart technology: The unique six-layer WindSmart technology detects wind direction and cuts wind noise, so your voice is clearly heard even outdoors. Designed for comfort: The shape has been tested to adapt to various ear shapes, providing a comfortable and stable fit. Even if you wear it all day, the last call will feel like the first call of the day. Continuous talk time: Approximately 7 hours; Connection range: Approximately 30 meters, Bluetooth V5.0 Profiles: A2DP/AVRCP/HFP1.6/HSP1.2