Introducing the Pet Doorbell! This wireless dog doorbell helps your pet 'knock' on the door instead of scratching it with their claws. Your dog simply touches the transmitter with their paw or nose, and the bell rings, protecting your door from scratches. Adjustable Volume and Tunes: This wireless touch dog doorbell features five volume levels from 0-110 decibels, including a silent mode that won't disturb your neighbors. It also has 55 built-in tunes to choose from, allowing you to customize the ringtone and volume. You can easily add or remove transmitters through simple pairing. Weather-Resistant: With its IP55 waterproof rating and good heat resistance, this wireless touch doorbell is not afraid of changing weather conditions. You can freely place the transmitter outdoors. Powerful Signal: The transmission distance of this wireless touch dog doorbell reaches 300m in open areas, ensuring stable and efficient signal transmission. It's ideal for large homes, including villas, apartments, offices, shops, warehouses, etc. Emergency Function: The transmitter with a hanging hole is compact and lightweight, making it convenient to carry. In an emergency, such as a burglar or earthquake, press the panic button to alert the receiver or disarm, instantly sending out an emergency signal.