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Black rectangular handheld device with two front emitters and side buttons

DNBeffulgent

DNBeffulgent U9 Ultrasonic Bark Deterrent 50ft Black

SKU CH-0N75-C4KZD

Ultrasonic bark deterrent with dual emitters reaches 50 ft, offers three training modes, adjustable sensitivity, LED and police lights, and 30-day battery life

  • TypeU9
  • Size6.5 in x 3 in x 2 in
  • ColorBLACK
  • Humane ultrasonic correction stops barking without harm
  • 50ft effective range covers large indoor and outdoor areas
  • Dual 25kHz fixed and 20-30kHz variable frequencies reach stubborn barkers
  • Three training modes plus safety lock prevent accidental activation
  • Adjustable sensitivity and 30-day battery life suit individual dogs

What the DNBeffulgent U9 Does

This handheld deterrent stops unwanted barking with ultrasonic sound that humans cannot hear. It suits owners who want a humane way to correct behaviour without collars or shocks. The device also works on chewing, jumping and biting. It is not for buyers who need a stationary outdoor unit or a collar-worn correction system.

Range and Frequency Limits

The unit reaches 50 ft and uses fixed 25 kHz plus variable 20-30 kHz frequencies. About 10 percent of dogs may not respond to the fixed tone alone. The undulating 20-30 kHz burst is added to cover those cases. Effectiveness drops beyond the stated distance or through thick walls.

Setup and Common Issues

Select one of three modes and adjust sensitivity with the dial. A safety lock prevents accidental activation. The built-in battery lasts up to 30 days per charge. Users sometimes forget to unlock the device or set sensitivity too low for their dog.

Highlights

  • Humane ultrasonic correction stops barking without harm
  • 50ft effective range covers large indoor and outdoor areas
  • Dual 25kHz fixed and 20-30kHz variable frequencies reach stubborn barkers
  • Three training modes plus safety lock prevent accidental activation
  • Adjustable sensitivity and 30-day battery life suit individual dogs

Specifications

BrandGROOVYPETS
TypeU9
Size6.5 in x 3 in x 2 in
ColorBLACK

Questions about this item

Which training mode should I pick for a dog that ignores basic ultrasonic sounds?

The variable 20 to 30 kHz boom mode is designed for the 10 percent of dogs that become immune to the fixed 25 kHz tone, giving a stronger stimulus without harm.

What does the 50 ft range mean when I use this outdoors?

The dual emitters project sound up to 50 ft in open air, so you can correct barking from across a typical garden or driveway without needing to stand next to the dog.

How does the safety lock affect the flashlight and ultrasonic buttons?

The lock disables all emission buttons so the device cannot fire ultrasonic bursts or activate the LED and police lights while stored in a pocket or bag.

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