1.Motion Sensor Detector alarm with Long Distance Wireless: Working range between Receiver and Transmitter up to 328 feet (100 meters), which allows you to place a good distance from the receiver to warn you of arrival and departure of family members, unwanted guests, or solicitors, or anyone who visits your home or business. 2.Driveway alarms outside with 2 ALERT Modes & 38 Ringtones Option - The door bell chime have 2 modes choices (LED Flash/Sound and LED Flash), 3 levels volume adjustment (High/Middle/Low ) from 25-80dB and 38 Ringtones to choose. 3.PIR SENSOR: Our sensor uses state-of-the-art passive-infrared (PIR) sensor to detect any movement within the detection range. The sensor uses 3 AAA batteries (Not Included). Infrared sensor detects motion and sends a signal to the receiver. 4.EASY TO INSTALL- This alarm system can be set up within minutes. The sensors can be mounted to walls, fence posts, trees, or any other surface, providing extra layers of security and home .