Poly 209749-101 Offering PC wideband, a noise-canceling microphone and Hi-Fi stereo sound, this binaural headset provides a truly outstanding audio experience. Dynamic EQ optimizes your voice quality when you're on a call and automatically adjusts the EQ settings when you're listening to music or multimedia. USB-C connectivity allows you to manage calls directly from your PC or tablet. Its lightweight metal headband offers durability and a custom fit. Leatherette ear cushions fold flat for easy portability and include a convenient carrying case. Easy installation and UC Toolkit resources make IT deployment and management painless while upgradable firmware and software ensure compatibility and feature support.