Voyager Focus 2 Office USB-A (Plantronics) - Bluetooth Dual-Ear (Stereo) Headset with Boom Mic

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, with office base for easy charging. Multiple device connections: desk phone, PC / Mac ( via USB-A cable ) and mobile phone connection options with Office versions.