Yealink (WH64-Dual-Teams) Microsoft Teams Certified DECT/Bluetooth Wireless Headset
3 mic beamforming noise cancellation
Talk time(up to): 16h(Dual, DECT Mode)
Bluetooth:5.2
Busylight on headset
2 year warrant
DECT Base Connection Port:
1x Micro USB 2.0 port (for IP Phone via USB)
1x Type-C USB 2.0 port (for PC)
1x Mini USB port (for 3rd Party Phone, EHS62/Telephone Cable)
1x DC power port 
1x Busylight port (for BLT60)
Package Contents:
1x DECT Base (WHB640T)
1x Dual headset(WHD642T)
1x Carrying Bag
1x Power Adapter
1x USB 2.0 Cable (USB-A to USB-C) 
1x USB 2.0 Cable (Micro USB to USB-A)
1x Quick Start Guide & Regulatory Notices