Microsoft Teams Certified DECT & Bluetooth Hybrid Wireless Headset Headset: (Dual version) - Weights: 92g - Bluetooth & DECT Hybrid Wireless Technology - 3 mic beamforming noise cancellation - Talk time(up to): 13h(Mono, DECT Mode) - Bluetooth: 5.2 - Busylight on headset Package Contents: - DECT Dongle, USB-A (WDD60) - Dual headset(WHM641UC) - Carrying Bag - USB 2.0 Cable (USB-A to USB-C)  - Quick Start Guide & Regulatory Notices