Microsoft Certified Teams Phone for Knowledge Workers,Android 9.0,7-inch (800 x 480) capacitive touch screen,Optimal HD audio, Yealink Noise Proof Technology,Magnet handset,Dedicated Microsoft Teams button,Microsoft Teams-tailored user interface,Built-in Bluetooth and dual band 2.4G/5G Wi-Fi,1x USB Type A port, supports USB headset,Dual-port Gigabit Ethernet,PoE support, without power adapter,Supports Microsoft/Yealink/U2 device management platforms,1-Year hardware warranty, IEEE 802.3af PoE support, without PSU