Model: 520 - Quantity: 1 - Color: Green - Material: ABS + Aluminum - Solar panel power: 4V 45mA - Charging battery: 1 x 1.2V / 800mAh AA Ni-Cd battery - Charging current: >/= 50mA - Environmental light: 70000 Lux - Screen size: 4.6" - Effective range: About 500 square meters - Powered by 4 x D batteries (SD-021 / 022) it will produce ultrasonic shockwave every 40 seconds - Install the product of 2 devices at every 30 meters for ground area frequented by rodents - Completed powered by solar energy - Easy and safe to use - No poison no chemical - Ideal pest control device to keep rodents away from your garden or lawns by utilizing both sonic wave sound and vibration technology - Packing list: - 1 x Solar rodent repeller - 1 x Aluminum bar - 1 x English user manual