Deroopy 3-in-1 Ultrasonic Dog Repeller & Trainer | 33ft Range, Rechargeable with LED Light

Deroopy emits high-frequency ultrasonic sound (25 kHz–40 kHz) that dogs can hear but is imperceptible to humans—a humane alternative to shock collars. It's designed to startle only, not harm; think of it like a harmless “attention-grabber” that discourages unwanted behavior. The 800 mAh rechargeable battery ensures long usage and fast charging via USB-C.

The ultrasonic waves are directional within a narrow beam, so aim away from your other pets to avoid unintended effects. It's safe for other nearby animals and even for possible use near horses.

Many users report success—ultrasound interrupts dogs' behavior patterns by making them associate barking with the unpleasant sound. However, results vary based on your dog’s temperament, hearing sensitivity, and consistent use.

Use targeted, short bursts (1–2 seconds), combined with your training voice command like “Quiet.” Ensure a clear line-of-sight within 2–8 meters for best results—ultrasound doesn't penetrate walls or barriers.

No. Ultrasonic waves dissipate quickly. Effectiveness is highest within 5–10 feet and significantly reduced by walls, windows, or obstacles. Use in open, direct line-of-sight conditions.

May cause stress if overused or if your dog is already anxious.
Not ideal for multi-dog households when correction should target only one.
Effectiveness may vary by age—less so in senior dogs or those with impaired hearing.

Ideal for dogs aged 6 months to 8 years, particularly those that respond to sound-based correction. Not recommended for dogs with neurological conditions or hearing impairments.

Yes. Many users successfully use handheld ultrasonic repellents during walks, camping, or hikes to deter stray or reactive dogs—when used properly within range and direct aim.

Check the following:
1.Is the device charged?
2.Are you targeting within range with clear line-of-sight?
3.Are you pairing the sound with training reinforcement?
If issues persist, it might be due to your dog’s temperament, age, or habituation. Consider combining with positive reinforcement or training methods.

Yes. As a non-physical, non-shock training aid, Deroopy is considered more humane than collars or sprays. Still, it’s best used as part of a broader training and behavior modification strategy.