Core Features: Android 9.0 Zoom User Interface 4 inch (800 x 480) Capacitive Touch Screen Magnet Handset Optimal HD audio, Yealink Noise Proof Technology Full-duplex hands-free speakerphone with AEC Bluetooth Headset via BT41 Wi-Fi via WF50 USB 2.0 port, Support USB Headset Dual-port Gigabit Ethernet, Support PoE Wall mountable Support Yealink/Zoom Device Management Platform.