Would extending the length of the wire to the Cold Laser Wristband lessen the effectiveness of the treatment? What kind of extension plug could I use? Spooky2 March 15, 2019 10:20 Follow No, I don't think it will less effective.And it will be 3.5mm stereo to stereo male to female adapter. Have more questions? Submit a request 0 Comments Please sign in to leave a comment.