Onvian RJ9 Male to 3.5mm Female Plug Headset Jack Phone Audio Adapter Cable
Brand: Onvian

3.5mm Female to RJ9 Cable

Using your own headphones to chat on telephone with this cable.
Use PC Headset with most VOIP phone that have a RJ9/RJ10/RJ22 headset jack. (Not compatible with RJ11)
Adapter cable with dual 3.5mm PC Headset jack to RJ9 Desk Phones Jack for Avaya, Cisco.
Due to power and impedance general computer headset is relatively low, compared to the effect of professional telephone headset there is a gap. The pursuit of high-quality effects pro professional products recommended to choose better Since the phone is not unified production standards, this product is not available for all brands phone. (compatible with about 90% telephone)
Notification: It can not work with 2 in 1 integrated headset.