What is Reddit's opinion of ASPECTEK Ultrasonic Wild Animal Control Cat, Dog, Deer, Mice, Bird,Rodent Repellent and Pests Control, Cordless Solar Powered Motion Activated, Sound Frequency:15 kHz -18 kHz?

From 3.5 billion Reddit comments

I actually use this indoors to keep cats from jumping on things they shouldnt. https://www.amazon.com/Ultrasonic-Repeller-Cordless-Batteries-Activated/dp/B00VF79OHC/ref=sr_1_3?ie=UTF8&qid=1472135038&sr=8-3&keywords=solar+ultrasonic+pest+repeller

Works great! You can turn up the sensitivity and noise and its a perfect non-violent deterrent from your unwelcome neighbor.

They have motion activated sprinklers.

There's also sonic cat repellers.

examples

https://www.amazon.ca/Ultrasonic-Repeller-Cordless-Charged-Activated/dp/B00VF79OHC/ref=pd_sim_86_3?ie=UTF8&psc=1&refRID=1397XXCF2M8BKG0ERPQN