PC Headset to RJ9/RJ10/RJ22 Phone Switch Adapter with 8 Circuit Lines Switch Compatible for Yealink,Grandstream,Avaya 1600 9600 Series Phones and Most Other Ordinary Telephones or Digital Telephones
- Convert two 3.5mm plugs to single 4P4C RJ9/RJ10 headset plug.
- Use your headset with almost any office phone (Avaya, Cisco, Polycom and etc) - 8 settings cover most phone models.
- Works great with most VOIP phones with a RJ9/Rj10/Rj22 headset jack.