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 to request entry, helping to prevent barking or scratching at the door. No scratches! No barking! The doorbell helps protect your door. With just a simple touch, even a cat can activate it! Flexible placement options mount on the door, glass, wall, or place on the floor. Intelligent pet doorbell with dual-zone AB function. Different callers can be assigned unique ringtones to distinguish needs from different areas. Open area working distance up to 1000 FT / 300 meters. Note: Actual signal reception may vary depending on environment and obstacles. (Data from factory laboratory) Waterproof design suitable for indoor and outdoor use. Transmitter features LEDs that light up when touched. Product name: Wireless Doorbell Receiver lights up when activated. 60 selectable melodies. Volume adjustable to 5 levels (with adjustable flashing light only). Transmitter uses 1 x 12V23A battery (included). Receiver is plug-in powered (100-240V). Transmitter size: 67mm x 15mm Receiver size: 56mm x 56mm x 20mm Plug Type: US Plug, compatible with outlets in Canada, Mexico, Thailand, Taiwan, the Philippines, and other countries using standard US voltage. Voltage: AC110V Color: White Material: ABS + Electronics Package Contents: 1 x Pet Doorbell Button 1 x Receiver 1 x Wall Mounting Kit 1 x User Manual Only the above package content, other products are not included. Note: Light reflection and differences in display screens may cause slight variations in color between the item and the image. Measurement allowance is +/- 1-3 cm.