ELEPOWSTAR Wireless Doorbell Chime with Waterproof Dog Training Doorbell Ring by Paws &amp; Nose ，Over 500-feet Feet Distance， 52 Chimes Tunes， 4 Volume Levels， with 2 Plugin Receivers and 3 Push Buttons<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Special Pet Doorbell: training your pet to ring the doorbell， the infrared induction touch sensor technology will allow your dog/cat/puppy to easily activate the doorbell with a simple touch of a nose or paw. No more scratching， barking， and whining and keep your pet safe when they need to come back in the house!</li><li>A New Bonding Activity: enjoy the entertainment training with your pet，you can even surprise your guest with the special bonding between you and your pets by showing how well you two work together.</li><li>52 Melodies Chimes:offer 52 elegant or custom music，from the traditional"Ding Dong" to various well know chimes，4 levels adjustable volume from 25-100 dB.choose your own favorite melody as you wish!</li><li>Wireless Range:with up to 1000 feet operating range in open space，ensures that you will never miss any visitors or your pets coming home</li><li>Sensitive doorbell push buttons sensor technology easily activate the doorbell with a simple touch of a nose or paw. easy to training your dogs got more polite behavior，even train your dog treat the doorbell as a Warning chime to get clearly about what our dog happened.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41VriUVX4FL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51RzZV3u-CL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/410zTR-Qu-L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51V7Pts5jKL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51f%2Bl6RK7rL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51tAHT3rZIL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51Dv2vZoazL.jpg" noproxy>