* RJ9 4P4C Male Plug to 3.5mm Female Jack Headset Audio Phone Converter Adapter Extension Cable Wire Cord
Features:
1. Use PC Headset with most VOIP phones that have a RJ9 headset jack (Not compatible with RJ11).
2. Adapter cable with 3.5mm Headset jack to RJ9 Desk Phones Jack for Avaya, Cisco and more.
3. Don't need to worry about the compatibility. 3 kinds of converters of different standard inside to fit most brand.
4. Convert 3.5mm plugs to 4P4C RJ9/RJ10 headset plug, you can use your own headphone to chat on telephone with this cable.
Specification:
Connector 1: RJ9 male
Connector 2: 3.5mm TRRS female
Cable length: approx 40cm/15.74''
Note:
Please allow slight size differs due to manual measurement.
Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understand.

Included:
1 X 3.5mm Female Jack to 4P4C RJ9 Male Cable
3 X RJ9 Male to Female Converter Cable (different standard)