• 4'' capacitive touch screen • Black acoustics fabric, resistant to water/oil/stain • Battery capacity: 7800mAH, charging time: 4 hours • Up to 75 hours standby time in Wi-Fi mode (in ideal conditions) • Up to 15 hours talk time (in ideal conditions) • Optimal HD audio • Yealink Noise Proof Technology, Smart Noise Filtering • 20-foot (6-meter) microphone pickup range • Built-in 6-microphone array for 360-degree voice pickup • Full-duplex speakerphone with AEC • 5-way conference call • Built-in Bluetooth/Wi-Fi • 1 x USB 2.0 Type-C port • Supports Yealink Device Management Platform DATA SHEET>>