Description:right LED Indicators and a choice of 38 Chimes allow you to customize your alerts.Features:Includes wireless battery operated sensor and plug in receiverJust place the sensor at the entrance to your driveway and the receiver inside your home.It detects movements and sends a signal to the receiver from up to 328 feet (100m) away.Alerts you when someone enters your driveway walking path doorway or business such as visitors vehicles intruders animals or kids coming or going. Advanced notice when someone or something enters before they surprise you.Use it to monitor any area inside or outside its wireless so you can place it anywhere in the house or even take it from room to room.Specifications:Note: Includes 1 plug-in receiver unit and 2 motion sensorsWorking Voltage of the Receiver110V-240VWorking Voltage of the PIR Sensor4.5V (3x AAA batteriesNot Included)Working Range: Up to 328 feet (100 meters)Infrared Sensing Range: Up to 23 feet (7 meters)Receiver Size: 3.14 L x 2.99 W x 1.29 H (80 x 76 x 33mm)Sensor Size: 3.14 L x 2.32 W x 1.77 H (80 x 59 x 45mm)Packaging Weight: 7.76 ounces (0.22kg)Receiver Switch Settings:Music source: 38 different songsVolume Adjustment: high middle lowReceiver can be set to sound and silenceSound: sound indicatorSilent: indicator lightPackage Included:2 x PIR Sensor (Uses 3 AAA not included)1 x Receiver1 x Mounting Accessories kit (needs 1 or 2 screws not include)1 x Manual1 x Retail boxNotes:Please note that this not waterproof.Keep it away from rains or cover adequately.