Yealink BH74 UC  Certified  Bluetooth  Wireless  Headset
•      for  office  worker  and  hybrid  worker
Headset  part:  
•    Color:  Black
•    Weights:  152g
•    All-day-wearing  comfort
•    6  mic  beamforming  noise  cancellation
•    Talk  time:  (up  to)  32h
•    Bluetooth：5.2
•    30  mm  custom  speakers
•  Support  Yealink  Connect  APP  and  Yealink  USB  Connect  Manager
•    Enhanced  Busy  Light
Package  List
•  USB  2.0  Cable (USB-C  to  USB-C)
•  BHD742  Headset
•  Carrying  Case
•  BT51  C  Dongle(with  Type  A  Adpater)
•  Quick  Start  Guide
Connection:
•  Mobile  phone
•  PC