Keep Your Pets off your Furniture. fast Emits a startling 85-decibel beep Instantly activated by the touch of a paw, works on cats and dogs weighing more than 3 pounds. Use on chairs, countertops, beds, in front of doorways, trash cans, and the sofa. Requires one 9 volts alkaline battery (not included). Features:  1.Quickly discourages pets from developing bad habits  2.Safe, low-voltage battery-operated system can be used anywhere  3.Mats activate until untouched  4.One 9 volt battery (not included) lasts for up to 6 months or 10,000 activations  5.Easy to clean and portable Product Size: 8.5 *48 inch