General Features - 4" capacitive touchscreen - Black acoustic fabric, water/oil/stain resistant Audio Features - Optimal HD audio - Yealink Noise Proof Technology, intelligent noise filtering - 6 meters (20 feet) microphone reception range - Built-in 6-microphone array for 360-degree voice recording - Built-in microphone for noise reduction - Full duplex speakerphone with AEC Phone features - 5-way conference call - 3-way PSTN conference via Yealink CPN10 (optional) Connectivity - Built-in Bluetooth/Wi-Fi - Powered by Ethernet (IEEE 802.3af), Class 3 - 1 USB2.0 Type-C port Advanced features - Supports a wireless Bluetooth extension microphone CPW25 (*in preparation) - Supports the Yealink Device Management Platform