S Voice Problem

[AC Question]

Hi I have Samsung Galaxy Note 3 Neo . It was working fine but now as soon as I attach my handfree, the S Voice function starts automatically n keep asking for me to do any command which doesn't operate when given any. And If I back the option then the video or music whatever I am watching also gets exit. I've tried disabling the S Voice app but the problem still there n its bugging me off !
PLease help me sort it out !
Thanks in advance