This is a wireless doorbell specially designed for pets with sensitive waterproof touch buttons, you can train your pet to touch it with their nose or paw to avoid barking or scratching. No scratches! No barking! The doorbell saves your door! With just a touch, even a cat can activate it! Random Placement - On the door, On the glass, On the wall, On the floor. Intelligent Pet Doorbell - With distinguishable AB door function, different callers can match different ringtones to distinguish the needs of beloved pets from different areas. Open area working distance 1000 FT/300 meters. Note: Actual signal reception varies depending on the environment and obstacles.(Data from factory laboratory) Waterproof Design - Suitable for indoor/outdoor use. Transmitter with LEDS that light up when touched. Product name: Wireless Pet Touch Doorbell Receiver: lights up when the bell rings. Music: 60 pieces of music. Volume: 5-levels volume (adjustable flashing light only) Transmitter:uses 1 x 12V23A battery Receiver:Plugged in for use (100-240V) Transmitter size: 67mmx15mm Receiver size: 56mmx56mmx20mm Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. Voltage:AC110V Colour:Black Material:ABS+Electronics Package Contents: 1 * pets Doorbell button