Outdoor Home Security Motion Sensor Alarm, Wireless Driveway Alert Never worry about surprise visitors again with our wireless driveway alert. Bright LED indicators and 38 chimes to choose from let you customize your alerts. Includes a battery-operated wireless sensor and plug-in receiver Simply place the sensor at the entrance to your driveway and the receiver inside your home. It detects motion and sends a signal to the receiver up to 328 feet (100m) away. Alerts you when someone enters your driveway, path, door or business, such as visitors, vehicles, intruders, pets or children arriving or leaving. Get advance warning when someone or something enters before they surprise you. Use it to monitor any area indoors or outdoors, it's wireless so you can place it anywhere in your home or even carry it from room to room. Features: Receiver Working Voltage: 110V-240V PIR Sensor Working Voltage: 4.5V 3 AAA Batteries Working Range: Up to 100 meters (328 feet) Infrared Detection Range: Up to 23 feet (7 meters) Receiver Switch Settings: Music Source: 38 different songs Volume Adjustment: High, Medium, Low Easy, Quick and Wireless Installation: The infrared sensor detects motion and sends a signal to the receiver. Choose from 38 ringtones with bright LED light. The sensor can be mounted on the wall. Wireless Receiver: The portable wireless receiver plugs into any standard outlet. The sensor uses 3 AAA batteries. The detection delay between motion sensor alerts is configurable from 15 seconds to 30 seconds, simply place the sensor at the entrance to your driveway and the receiver inside your home. Operating range of up to 100 meters between the receiver and transmitter, allowing you to place it a good distance from the receiver to alert you of the arrival and departure of family members, unwanted guests or solicitors, or anyone visiting your home or business. Ideal for front doors, window frames, driveways, walkways, and anywhere you want to be alerted of motion. Also great for alerting business owners who work in the back or out of sight to customers entering their store.