Test Repellers and Observe Deer Deterrence

What happens here

On the fourth day, the host observes that the corn pile, now protected by the activated Kcasar ultrasonic animal repellers, has been left untouched by deer. He confirms that the repellers are emitting a high-frequency sound and flashing lights, which he notes is quite irritating even to human ears. He then presents the game camera footage from the night the repellers were active. This footage clearly shows deer approaching the area, but upon encountering the flashing lights and audible high-frequency sound from the repellers, they exhibit startled behavior, turning and running away from the corn. He concludes that, despite deer not being listed on the product packaging, the Kcasar ultrasonic animal repellers successfully deter deer. He encourages viewers to consider these devices for their gardens or orchards and offers a discount code.

Goal: Determine if the ultrasonic repellers successfully deter deer from the corn pile.