1.By emitting sound waves, the Solar Snake repellent drives away Snakevery effectively. The sound waves will irritate them, simulate danger, and repel them away from the irradiated area. Transmitting sound waves every 40 seconds or so, the Solar Snake repellent is effective within an area of 650 square meters. 2.The Solar Snake repellent radiates in all directions. Avoid any obstruction and let the sound waves be emitted freely. To make the best use of the product, we strongly recommend an installation of 2 devices at every 30 meters for ground areas frequented by the Snake. 3.The Solar Snake repellent's power is supplied by a solar cell, a rechargeable accumulator collecting power for operation at night. When the accumulator is fully charged, it can supply enough power for the dark hours, thus ensuring a continuous around-the-clock operation. 4.This Solar Snake repellent use computerized inching control technology, it combines the signal output with DC charge function. So the socket is not only signal output socket, but also is external DC charger for consecutive rainy daysâ?? use. this new technology applied is more convenient to customers operate and bring the added value to this models. 5. This Solar Snake Repellnt is with garden ligth. The LED light with AEI will power on when less light and continue work 4 hours,brighten your garden in the same time do not interfere with the wok for Snake repeller . 6. How to installing in the ground: Dig the hole in the area where the pests are found, don't hammer the unit into the ground, as this will damage it. Carefully place the unit into the hole, ensuring that the soil comes up to 2/3 the unit.