1. Motion activation: The sensitive motion sensor can detect any movement within 5 - 8 meters and trigger a sound alarm, a sound trigger, and a flash. It has a motion sensor that is applicable not only to humans but also to animals. 2. Heard and seen from afar: The alarm sound is 110 dB and can be heard at a distance of 1000 meters. The strobe light is visible at a distance of 1000 meters. 3. Solar charging and long working time: After being fully charged in the sun, the buzzer can work for about 30 days. Don't worry about running out of power. Note: The data is measured manually. Please allow an error of 1 - 20 cm. Due to differences in light and the screen, there will be a certain color difference. The actual product received shall prevail. 4. Specifications: - Material: ABS - Waterproof: IP65 - Number of LED lights: 6 - Visibility: 1000 meters - Battery capacity: 400 mA (3.7 V) - Charging type: Solar panel charging - Solar cell voltage: 5 V - Charging time: Approximately 6 - 8 hours Note: Please remember that being in a noisy environment for a long time will cause harm to the environment.