Mighty Paw Self-Powered Wireless doorbell activator

* No “Strings” Attaches: No wires or batteries required – bell is easily mounted on your door or wall with a 3M adhesive strip, no tools necessary! * Easy-to-use: Bell rings using just .75 lbs of pressure, making it easy to use for dogs of any size. * Customizable: Bell volume and ring tone can be customized to the style of your choice, with 4 different volumes and 38 different tones to choose from! Activator and receiver communicate as far as 1000 feet from each other when indoors. * Water-resistant: Can be used both indoors and outdoors