Ultrasonic Bark Control
A weatherproof ultrasonic deterrent that detects barking up to 50 feet away and answers with a high-pitch tone only dogs can hear, curbing nuisance barking humanely.
- Stops barking humanelyUltrasound auto-activates within 50 feet, inaudible to humans
- Safe for every dogHigh-frequency signal is harmless and causes no pain
- No manual switchingDetects barks and shuts off automatically when dog quiets






Wrenwood has been a game changer for our little zoo. I get everything for my cat and dog here.
Megan R. · Asheville, NC
Product details & care
An ultrasonic anti-bark device that works on its own to discourage barking. It listens for barking up to 50 feet away, emits an ultrasonic tone that only dogs can hear, and stops once the barking stops. Hang it indoors or outdoors and let it do the work.
Features
- Detects barking from up to 50 feet away
- Emits an ultrasonic tone when it hears barking, then stops automatically
- Tone is inaudible to human ears
- Hangs on a tree, wall, or fence, indoors or outdoors
- Rechargeable over USB
- Designed for dogs from 6 months to 8 years old
Specifications
- Overall dimensions: 3.25 in W × 2 in D × 4.25 in H (9 × 5 × 11 cm)
- Detection range: up to 50 ft (15 m)
- Weight: 0.4 lb (0.2 kg)
- Power: rechargeable via USB
- Suitable for: dogs 6 months to 8 years
Care
Recharge over USB as needed and wipe the housing clean.
In the box
One anti-bark device, one USB cable, one instruction book.
Shipping & returns
Ships from our partner warehouse within 1–3 business days, then typically arrives in about 5–10 business days with tracking.
Because these items ship direct and are priced low, we don't accept change-of-mind returns on them. You're still fully covered if anything's wrong — see our guarantee below.
Our happiness guarantee
Arrived damaged, defective, wrong, or missing? Email returns@wrenwoodpets.com within 48 hours of delivery with a quick photo and we'll make it right — a free replacement or a full refund, and you won't need to ship anything back.
Why pet parents choose this device
A hands-off way to discourage barking that you never have to hear.
Detects barks nearby
The built-in microphone picks up barking from up to 50 feet away.
Automatic response
It emits an ultrasonic sound when it hears barking and stops once the barking stops.
Silent to people
The ultrasonic tone is inaudible to human ears.
Indoor or outdoor
Hang it on a tree, wall, or fence, inside or out, within range.
Rechargeable
Charges over USB with the included cable, so there are no batteries to swap.
Hands-off training
It works on its own once placed, with no button-pressing needed.
How it works
Charge it up
Top up the device over USB with the included cable before first use.
Place it in range
Hang it on a tree, wall, or fence within about 50 feet of where the barking happens.
Let it respond
When it detects barking it emits an ultrasonic tone, then stops once the barking stops.
Straight from the Wrenwood pack
Questions, answered
How far away does it detect barking?
Can people hear the sound?
Where can I place it?
How is it powered?
What dogs is it made for?
Do I have to operate it manually?
You're in good company.
Thousands of pet parents have welcomed Wrenwood into their homes, and their dogs, cats, and critters are all the happier for it.
Every order ships fast, is priced fairly, and is backed by our no-drama happiness guarantee.
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