Solar Wireless Driveway Alarm Alert Outside 2000ft Range, Outdoor Motion Sensor & Detector Driveway Alert System with Rechargeable Battery/Weatherproof/Mute Mode/Expandable(1 Receiver and 2 sensors)

With the solar panel, the sensor comes with a rechargeable battery for up to 24 months on a full charge! Easily adjust the sensor's sensitivity to avoid interference such as leaves or small animals. Easily expand your security zone with more sensors! The sensor can be used as a motion activated barking dog alarm with 12 kinds of chimes (including Dog Barking & Gunshot Sound). The sensor has 4 different work modes. The light and alarm sound on the sensor can be turned ON/OFF. The receiver has 16 kinds of chimes adjustable; you can set different chimes for different sensors with the new melody sound sensor 1, sensor 2.

(these melodies were recommended by customers for the old version system). The volume of the receiver is adjustable (4 levels, including mute level). The volume of the sensor cannot be adjusted