3.5mm to RJ9 Cable Adapter 4P4C Female Extension Lead for Telephone Headset

3.5mm male jack to RJ9 4P4C female. Connector B: RJ9 4P4C female. Cable Type: 3.5mm to RJ9 adapter. 1 x 3.5mm to RJ9 Adapter Cable. Headset adapter and extension use. Function: Audio / headset connection (device dependent).

eBay