Review on 🐶 50Ft Long Range Anti Barking Device - Auto Ultrasonic Dog Bark Deterrent with Dual Speaker, Waterproof for Outdoor Use, Adjustable Ultrasonic Level Control + Bonus Training Whistle by Justin Miller

I can't write a detailed review yet, I've only been using it for a week. But I think it works to a certain extent. My neighbor has a dog from hell and barks very loudly all the time. Wakes me up around 11:30 p.m. almost every day. But her barking stops after about 20 seconds when this thing is in a tree across from her backyard. I hope this helps. 🤞Update - 9/21 Batteries discharge too quickly. This can help, but you'll need to change batteries weekly for best results. The light will stop flashing after 10 days.