I have some 18 guage 2 pair cable for sale. Each pair is shielded, with a drain wire. Overall gray PVC jacket. I used it to wire up the speakers in my home theater setup. Being that the pairs are twisted and shielded, it can be used most anywhere without worry of crosstalk or interference. I have a little over 400’ on a reel…will sell the whole reel, or cut pieces for .30/ft