• Optimal HD audio • Yealink Noise Proof Technology, Smart Noise Filtering • 20-foot (6-meter) microphone pickup range • Built-in 6-microphone array for 360-degree voice pickup • Built-in microphone for noise cancellation • Full-duplex speakerphone with AEC • 5-way conference call • 3-way PSTN conference via Yealink CPN10(optional) • Built-in Bluetooth/Wi-Fi • Power over Ethernet (IEEE 802.3af ), class 3 • 1 x USB 2.0 Type-C port • Supports Yealink Device Management Platform DATA SHEET>>