YR-P550 PBX:Default Title Features: 3-Mic Noise Cancellation All-day-wearing

Features: 3-Mic Noise Cancellation All-day-wearing comfort 35mm custom speakers Brilliant audio quality Up to 35 hours wireless battery life Engineered for minimizing wind noise Lightweight design Enhanced Busy Light Compatible with mainstream UC platforms

Yealink DeskVision A24 Microsoft Teams Display with Built-in Microphones

Off-hook Current: 10 mA Ring Frequency: 25 Hz Terminating Impedance Option: 600 Ohm Ring Load: 840 Ohm Max Length Supported: 1500M Loop Impedance: 2000 Ohm Pulse Dial Speed: 100~135 ms/ 10pps Loop Current: 20 mA Surge Voltage: 1

and the sophisticated structural design will greatly facilitate your installation and deployment

Acoustic Shield technology

YR-P550 PBX:Default Title Features: 3-Mic Noise Cancellation All-day-wearingYeastar P550 PBX 50user 25channels, Basic features.