High quality: Special design and beautiful appearance Easy to use: Simple operation, fixing it anywhere you want Easy to install: Infrared sensor detects movement and sends a signal to receiver Easy to operate: wireless installation, just place the sensor at the entrance Ideal for indoors and outdoors: send audible sound, alert you that someone is approaching Product Description Description: Wireless Home Alert Security System is a Easy to install and DIY home security, perfect for your office, apartment or home. Rest easy! The driveway alarm provides a solution to alert you as soon as someone enters your property. It is practical and above all, with an affordable price. When motion is detected, the Passive Infrared (PIR) sensor sends a wireless signal to the receiving unit up to 70m / 300ft away. There are 38 ringtones and 3 volume levels and a silent LED flash. Features: Condition: New Receiver operating voltage: 110V- 240V PIR sensor working voltage: 4.5V3 AAA batteries Plug: EU plug Working range: up to 70 meters Infrared detection distance: 3-7 meters White color Material: plastic Receiver switch setting:< /p> 1) Music source: 38 different songs optional, use the external "music" button to complete 2) The volume adjustment function: There are three kinds of volume ( high, medium, low) for choice 3) Adjust sound and silence Follow the operation steps: 1. Place the appropriate batteries in the detector. 2. Make sure the batteries have been placed in the correct positions. 3. Properly mount the detector near the front door, window frame, driveway, walkway, yard or any other place you need. 4. Then turn on the receiver and set the volume to hi or lo position. 5. Now the remote sensing system works with infrared sensing technology. 6. Place the receiver in an easily accessible location. 7. When the detector detects movement, the receiver emits an audible sound and the LED light flashes. 8. Please wait 30 seconds after turning on the detective and the receiver to activate it. 9. Please install both units above 3 feet above ground level for optimum performance. Details that require special attention 1. Importance: Please place the detector receiver in a sheltered place to avoid the two units from contact with water and direct sunlight. 2. If the LED light is off, the battery is low or depleted. You should replace the battery at this time. 3. Regularly clean the detective with a damp cloth to prevent small particles from blocking the sensor. 4. Try to put it somewhere where it won't get wet. Also, during blizzards and heavy snowfalls, it is recommended to move the equipment indoors or to a safe place. 5. Do not disassemble the equipment. 6. When the machine is not in use, please remove all batteries, clean both units and store them in a cool, dry place. 7. This equipment is not a toy and should be placed out of the reach of children. Note: 1. Please allow 1-2cm error due to manual measurement. Thank you for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as the standard. Dear customer, please rest assured to buy without worrying about the adaptation of the plug. We will provide you with an adapter according to the standards of different countries and ensure its normal use.