POLY Voyager Focus 2 UC Headset Wired & Wireless Head-band Office/

Audio performance: Adjust the noise canceling level for your personal preference with three options of Advanced Digital Hybrid active noise canceling (ANC)-high, low and off. Poly Acoustic Fence technology: Advanced multi-microphone noise canceling so callers hear you and not your surroundings. Smart technology: Dynamic Mute Alert tells you if you speak while muted. All-Day Wearing: Lightweight headband with sling and plush ear cushions for all-day comfort. Up to 19 hours of talk time. Multiple device connections: Connect to a computer with the included BT700 USB-C adapter and to a mobile via Bluetooth v5.1