Solar energy: The barking dog alarm uses 5V x 150mA solar panels, 6 flashing red LEDs and has two functions: A level 24H sound and light induction, B-level sound and light induction at night; solar charging is more than 8 hours, DC charging is less than 2 hours (DC5V x 1A), can feel more than 100 times. Recording function: The Barking Dog Motion Sensor has a recording function that allows you to record your own messages or sounds. Recording can be repeated. A single recording can last up to 20 seconds, and each sensor can be played repeatedly 2 times. 360 Motion Sensor: The perimeter alarm has a 360 motion sensor which can detect movement of 15-20 feet. It is suitable for homes, orchards, construction sites, courtyards, warehouses and other places where security alarms and wildlife need to be driven away. 13 Realistic Barking Sounds: Motion Alarm Outdoor emits 129 decibels sound to create there is a guard dog in place, supports dog barking gaps, wolf flips, gongs, crackers, lion roar, pig-killing sounds, explosions, pipsirens, car horns, alarms, bells and whistles. Wireless remote control: Barking Dog Alarm is equipped with a wireless remote control, the remote control distance can reach 10-200 meters, allowing you to arm and disarm the alarm from a long distance.