WALFRONT 3 Sizes Pet Training Mat Scat Mat for Dogs Cats Electric Safe Shock Mat,Outdoor Indoor Dogs Cats Training Mat for Sofa Furniture Couch,3 Training Modes Pet Shock Pad

This is a great item to keep cats off of surfaces. I had quite a bit of service time with it from an almost dead battery. I am uncertain how long a fully charged alkaline battery would last but I recommend geting an AC to 9 volt adapter for stubborn cases where you have to leave it in place for a week or train on multiple surfaces for an extended amount of time.