• 2" 240 x 320 color screen • 4 SIP Lines • Built-in dual-band Wi-Fi (2.4G/5G) • Support IEEE802.11k/v/r roaming • Support WPA / WPA2-PSK and 802.1X EAP encryption to ensure communications security • Built-in Bluetooth 5.0 can be used to connect  wireless earphone • No operation screen after 10 seconds during a call • One configurable push-to-talk (PTT) button for quick dial • Up to 9 hours’ talk time and up to 200 hours standby time