4-inch multi-touch screen with 480x800 resolution
Optimal HD audio, full duplex technology
Yealink Noise Proof Technology
Built-in rechargeable lithium battery
Up to 20 hours talk time (in ideal conditions)
Up to 75 hours standby time in Wi-Fi mode (in ideal conditions)
20-foot (6-meter) and 360° voice pickup
Built-in 6-microphone array for voice pickup
5-way conference call
Hybrid UC meeting
Built-in Wi-Fi (2.4GHz/5GHz, 802.11a/b/g/n)
Built-in Bluetooth 4.2