Yealink 7 Inch Touch Screen Microsoft Certified Phone for Knowledge Workers. Mid-level Android 12.0-powered desk Teams phone for office workers. • Android 12 OS desk phone • 7-inch capacitive touchscreen • Optimal HD audio, Yealink Noise Proof Technology • Microsoft Teams-tailored user interface • Dedicated Microsoft Teams button • Supports Office 365, and upgradability of device applications to Teams or SFB • Magnet handset • Supports Expansion Module EXP50 • Built-in Bluetooth 4.2 and dual-band 2.4G/5G Wi-Fi • USB Type-A port, supports USB headset • Dual-port Gigabit Ethernet, PoE support • Supports Microsoft/Yealink/U2 device management platforms