40.80 CHF
Snom Headset A100D Duo
Cable
Snom Headset A100D Duo
Cable
According to adapter price, it's better to return it, and order new USB headset,
for example Poly Blackwire C720-M (Cable, Skype for Business) or Poly Blackwire 5220 USB-C (Cable)
The Yealink T42G has an RJ9 connector and can therefore be connected directly to the headset.