Yealink WF40 USB Dongle For Yealink Phones Over the ear headset 9143i and 9480i - See

9143i and 9480i - See more at:

Built call center tough - superior sound quality too

Adjustable headband clicks in place for a custom

Constructed of a hard plastic

5mm stereo male to female extensions cables

Yealink WF40 USB Dongle For Yealink Phones Over the ear headset 9143i and 9480i - SeeSupports Yealink SIP T27G T29G T46G T48G T46S T48S T52S T54S For T48G: upgrade to the version of 35. 80. 0. 95 or higher For T29G T46G T46S T48S: upgrade to the version 81 or higher For T27G: upgrade to the version of 69. 81. 0. 90 or higher Reliable Connection Ease of use Plug and Play High Transmission Rate Lower Power Consumption ***PRODUCT DATASHEET