Motorola Bark 500U Dual Ultra-sonic Anti-bark Control Indoor Unit

This is a specialist veterinary product. We will ask you a simple set of questions to confirm that you are buying the correct medicine for your pet and know how to use it safely

Warning: By law we cannot sell this product to anyone under 18, by placing an order with us you are confirming that you are over the age of 18.

Order by 3pm for Express Courier Delivery  Some of the items we sell are a bit too bulky to fit on our delivery vans so we offer our customers Next Day Delivery via courier. Deliveries are made from 8am - 8pm Monday to Saturday and 9am - 5pm on Sundays. Your delivery slot will only be confirmed once your order has been placed.

Motorola Shock Free No-Bark Ball

The Motorola BARK 500U is an indoor Ultrasonic bark deterrent that helps you keep your dog under control in key areas of your home. 

The BARK 500U allows the dog to bark freely for 5 second prior to releasing any Ultrasonic as a deterrent for the dog to stop barking. 

The 25KHz of Ultrasonic deterrent released is inaudible to most humans, and are only the kind dogs are able to hear, at a rate of 120 decibels.

Mount the magnetic base on the wall and place the detachable unit inside, ideal to keep near your front door to prevent your dog from barking excessively. The detachable unit can be taken out of the magnetic base and placed anywhere in the home, to help control your dog's bark. There are three levels to choose from; Low, Medium and High to meet the needs of your dog.

Battery Life

The average battery life is up to 3 months, depending on how often your dog barks. The Indicator LED lights up in red when battery is low.

Requires 4 x AA batteries - not included

Product Information

Dogs learn and adapt at different speeds. It may take several times for your dog to understand the purpose of the No-Bark System. After a couple of days using the No-Bark Ball, your dog will learn to relax and reduce its barking behavior.

However, please remain consistent in your use of the No-Bark Ball even after you notice a reduction in your dog’s barking.


Reward your dog with treats, play and praise when it is not barking.

Many dogs will bark while playing with people or other dogs. Power off No-bark Ball before playing with your dog to avoid the unit from releasing ultrasonic correction.

Safety Advice

Do not leave your dog alone when using the No-Bark Ball the first few times.

As the ultrasonic sound may be startling to some dogs, stay around your dog after powering on the No-Bark Ball for the first few times.