Logitech Zone 305 Wireless Headset (981-001451) - Connectivity: Bluetooth, USB-C Receiver and USB-A Adapter, Driver size: 30 mm, Dual Mmni-directional MEMS Beamforming Mics with Noise-canceling Algorithms, Frequency Response: 100-7KHz, Built-in battery (Lithium ion), Battery Life: Up to 20 hours, Wireless Range: Up to 30m, USB-C Charging