18 Headphone adapters for ordinary and digital telephonesAdjustable volume and mute function

Not in original packaging, photocopied directions available.

7 are in ziplock packages with directions. 11 have no bag or directions

How To USE:

1. Connect the Male RJ11 of the Headset Adapter to the Headset Port of your Telephone.

2. Plug your RJ11 Headset into the Female RJ9/RJ11 of the Headset Adapter.

3. Then you could Adjust to the Circuit Line of the 8 Circuit Lines until Your New headset could works well with your Phone by Connecting to the Headset Adapter.