Overview The Poly 9T9K0AA#AC3 is a wireless headset designed to deliver clear audio and reliable comfort for professionals who spend long hours on calls or virtual meetings. It features hybrid active noise cancellation with three adjustable levels, helping you maintain focus in noisy environments. With up to 19 hours of talk time and seamless connectivity via a USB-C Bluetooth adapter, this headset supports smooth transitions between PCs, smartphones, and tablets. Key features Hybrid active noise cancellation with three selectable levels to create a personal quiet zone in busy settings Acoustic Fence technology on the boom microphone filters out background noise, ensuring your voice is heard clearly Lightweight headband with soft cushioning and plush ear cups for comfortable all-day wear USB-C Bluetooth adapter provides a stable and simple connection to PCs Certified for Microsoft Teams with a dedicated one-touch Teams button for quick access to meeting controls Smart sensors automatically answer calls when worn and mute the microphone when removed Bluetooth range extends up to 164 feet, expandable to 300 feet with an optional Voyager Office base Fast charging via included USB-C cable, reaching full charge in about two hours Compatible with Windows, macOS, Android, and iOS devices for versatile use Key specs Talk time: up to 19 hours with noise cancellation active Connectivity: USB-C Bluetooth adapter, Bluetooth wireless Noise cancellation: hybrid active with three levels Bluetooth range: 164 feet standard, 300 feet with optional base Charging time: approximately 2 hours via USB-C cable Compatibility: Windows, macOS, Android, iOS Connectivity and compatibility This headset connects to your PC using the included USB-C Bluetooth adapter, which ensures a stable and straightforward setup. It also pairs directly with smartphones and tablets via Bluetooth, allowing you to switch effortlessly between devices. The broad compatibility with Windows, macOS, Android, and iOS means it fits well into diverse work environments and personal setups. Comfort and usability Designed for extended use, the headset features a lightweight headband with soft cushioning and plush ear cups that reduce fatigue during long calls. Smart sensors add convenience by automatically answering calls when you put the headset on and muting the microphone when you take it off. These features help maintain focus and streamline your workflow without manual adjustments. Who this headset is for The Voyager Focus 2 is a strong choice for remote workers, office professionals, and anyone who needs clear communication in noisy or shared spaces. Its noise cancellation and microphone technology make it suitable for open offices, home workspaces, and travel. If you rely on Microsoft Teams for collaboration and want a headset that balances comfort, sound quality, and device flexibility, this model fits those needs well.