– Aspect ratio: 4:3 (primary); 3:4 (secondary)
– Native resolution: 320 x 240 (primary); 240 x 320 (secondary)
– Panel technology: Color IPS LCD
– Display size (diagonal): 3.5″ (primary); 2.4″ (secondary)
– External I/O ports: 1 USB 2.0 Type-C® (for media, storage applications, headset, expansion module) 2 RJ-45 (10/100/1000BASE-TX Mbps)
– Wireless Technology: Bluetooth® 5.0; Wi-Fi network connectivity: 2.4-2.4835 GHz(802.11b, 802.11g, 802.11n HT-20); 5.15-5.825 GHz (802.11a, 802.11n, HT-20, 802.11n HT-40); NFC
– Poly Acoustic Clarity technology provides full duplex conversations, acoustic echo cancellation, and background noise suppression
– Poly Acoustic Fence technology eliminates background noise when using a handset or wired headset
– Poly NoiseBlockAI technology removes most background noise when using the speakerphone
– Poly Computer Audio Connector app installed on your PC(Windows only) enables selecting your phone for PC audio in/out to use the phones handset, optional headset and hands free speakerphone with PC applications
– Bass frequency enhancing design
– Power features: 13 W (maximum) Built-in auto-sensing IEEE 802.3af Power over Ethernet (Class4)