- 300 m / 1000 ft wireless range for reliable notification: the signal is strong and penetrating so you are less likely to miss a visitor. The system does not interfere with your home electronics, and the transmitter battery life can reach up to 3 years. - Weather resistant and durable design: IP55 dustproof and waterproof rating; operating temperatures from -22 F to 158 F; built to withstand harsh weather conditions. - Flexible sound options and clear signaling: 55 ringtones to choose from and 5 adjustable volumes, with a volume range of 0-110 dB. - Easy and fast installation: simply plug the receiver into a power outlet and attach the push button to the wall using the provided screws or adhesive patch. Use scenarios - Family home with yard access: place the receiver in the living room or kitchen to hear visitors clearly from anywhere inside the house, including when you are in the back yard or garage. - Workshop, garage, or outdoor workspace: the long range and loud options ensure you don’t miss a visitor while focusing on tasks outdoors or in a separate building. - Small office or storefront: use the multiple ringtones and adjustable volumes to set distinct alerts for different entrances or areas, keeping customers informed without disturbing other areas.