Features: Material: ABS and aluminum tube. Rechargeable battery: 1.2 V / 800 mAh. Effective range: 650m. Frequency: 400-1000 Hz. Charging current: 45 mA with 90,000 lux. Note: Place the bar on the ground. Be careful not to exert excessive force to prevent the device from being damaged or hit against an obstacle. The base of the upper part should be open to the outside. Hold the upper part approximately 5 cm above the ground to prevent the device from falling in the event of rain. If the first time needs 10 minutes in the sun to create sound, absorb sunlight during the day and then work at night.Summer + ultrasound for 2-3 seconds and pause
