Review on 🐶 MODUS 3-in-1 Dog Training and Anti-Barking Device with Ultrasonic Modes, USB Rechargeable, LCD Screen, Effective Range up to 16.4 Ft, Suitable for Outdoor and Indoor Use by Anita Barlow

A Yorkie mix is no problem bark. The real problem is the very hairy Pomeranian/Shih Tzu mix. He barked at everything on TV, every sound and people walking outside. At any time of the day or night. I told my wife I almost got rid of it. She puts him in our bed to comfort him at night. We tried the dog shock collar but it seemed brutal and developed resistance to shock and felt too brutal to improve. This model M-239 greatly reduced its barking on the first try, and just as it grabbed the M-239 it stops. Barking. Ultrasonic frequency 1=25kHz, low decibel. Ultrasonic frequency 2 = 25 kHz, high decibel. Ultrasonic frequency 3 = 24-26 kHz. The main reason for buying this device was a different frequency so that the dog would not become immune. Also note that trying to discipline a barking Pomeranian makes us feel bad, a Yorkie is also inadvertently annoyed because she is in the same spot as him. The range of the device is 16.4ft in open space, fewer walls and wall materials. hey Wood and drywall are more porous to a wireless signal, while concrete is less porous, so the signal distance is shorter.