- 2.8-inch color screen - Up to 21 DSS keys, every DSS key can be set as Line/BLF/ Speed Dial Key - Built-in 2.4GHz/5GHz Wi-Fi supporting Wi-Fi 6 - Built-in Bluetooth 5.4, supporting Bluetooth wireless headset - Support audio codec G.722 and Opus, HD audio on speakerphone and handset - Support 6-way Audio conference - Dual Gigabit ports, integrated PoE