When the device works on 3 frequency levels,the light will flash blue every 6 seconds. The red light stays on 3 seconds when the sonic bark deterrent is triggered by barking. With max 26.2ft sensing distance,the device can efficiently help your dog curb barking.
eBay
Anti Barking Devices Auto Barking Control Devices with 3 Modes Ultrasonic Dog Stop Barking Dog
Aliexpress UK
Protect your warmth and peace. Safe for Dogs & People:Ultrasounds will not cause interference or harm to humans because humans cannot hear these frequency bands, but dogs are sensitive to these ultrasounds.
eBay
Anti Barking Device,Dog Barking Control Devices with 3 Modes,Rechargeable Ultrasonic Dog Barking
Aliexpress UK
Item Type: Dog Repellent. This product adopts double channel enhanced, double dog training, excitation drive dogs, liting function is one of the super ultrasonic. 1 Dog Repellent. Ultrasonic wave reaches up to 125db.
eBay
Anti Barking Device, Rechargeable Dog Barking Control Device with 3 Modes, Ultrasonic Dog Barking
Aliexpress UK
Training Mode: Emits lower intensity ultrasonic waves to assist in daily dog training such as stopping excessive barking, fighting, biting and correcting other unwanted behaviors. Indoor and outdoor & easy to use.
eBay
Ultrasonic Anti Barking Device Portable Dog Barking Control Device with LED Light Dog Bark Deterrent
Aliexpress UK
The trainer is based on the theory that ultrasound (ultrasonic wave reaches up to 125db) is above the upper limit of human hearing and super ultrasonic and 28000mcd strong white light. There are three modes for use: Training dog, Banish dog, Illuminating.
eBay
New Ultrasonic Stop Barking Dog Trainer – Automatic Sound Control, Anti-Barking Deterrent Device for
Aliexpress UK
Working Principle: The ultrasonic dog repeller emits 25KHz waves (audible to dogs 15Hz-50KHz), which don't harm. 1 x Ultrasonic Dog Repeller. but deter barking and aggressive dogs. 30-foot range for effective bark prevention.
eBay
K4 Ultrasonic Anti Bark Device Pet Dog Anti Barking Control Rechargeable Dog Repeller Trainer
Aliexpress UK
When the device works on 3 frequency levels,the light will flash blue every 6 seconds. The red light stays on 3 seconds when the sonic bark deterrent is triggered by barking. With max 26.2ft sensing distance,the device can efficiently help your dog curb barking.
eBay
New Ultrasonic Stop Barker Dog Trainer Automatic Sound Control Anti-Barking Rechargeable Deterrent
Aliexpress UK
Training Mode: Emits lower intensity ultrasonic waves to assist in daily dog training such as stopping excessive barking, fighting, biting and correcting other unwanted behaviors. Indoor and outdoor & easy to use.
eBay
Rechargeable Ultrasonic Dog Bark Control Device - Safe and Effective Deterrent for Excessive Barking
Aliexpress UK