The repeller operates on a simple ultrasonic frequency that's beyond the range of human hearing but perfectly audible to your dog. It requires a battery to operate, which is not included, and is suitable for all dog breeds.
eBay
Electric Dog Training Collar, Remote Control, Anti Bark Collars for Dogs, Vibration Sound, Rechargeable, Waterproof, Pet Colar
Aliexpress UK
The device is designed so that it does not harm the animal. ☑ Push button lock function while using. - Material: Anti-Barking Device: ABS; Collar: Nylon. - Power consumption: quiescent current 20ua, standby current 300ua;.
eBay
D8 Anti Barking Device Dog Bark Control Behavior Training Waterproof Rechargeable Tool Suitable for Small Medium Large Size Dogs
Aliexpress UK
This bark collar no more false triggering. Smart Detection Design can detect the dog barking on the particular frequency and decibel, filter other unrelated sounds. Growling, shaking, scratching or other dogs' barking won’t trigger the collar.
eBay
Ultrasonic Bark Preventer, Remote Control Ultrasonic Dog Repeller
Aliexpress UK
Whether it’s your own dog barking, or a neighbour’s dog, you’ll enjoy a new found peace and quiet with the GOODLIFE Dog Silencer MAX How does the GOODLIFE Dog Silencer MAX work?. The GOODLIFE Dog Silencer MAX will automatically detect the sound of barking.
eBay
Anti Barking Device Automatic Ultrasonic Mini Dog Bark Control Device with 4 Effective Adjustable Sensitivity Frequency Levels
Aliexpress UK
Only need to press the button of the anti barking device and point it at the dog. The LED indicator lights up in green to indicate the working status and an ultrasonic sound is emitted. ⭐【Updated Ultrasonic Anti Barking Device】2023 newest anti-bark dog training device uses the latest ultrasonic technology, which is safe and effective for stopping dog barking, suitable for correcting our own dog's misbehavior like excessive endless barking, eating unsafe food, fighting, digging, and stopping others' dog aggressive.
eBay
Rechargeable Ultrasonic Dog Bark Control Device - Safe and Effective Deterrent for Excessive Barking - Quiet and Gentle Training
Aliexpress UK
Working Principle: The ultrasonic dog repeller emits 25KHz waves (audible to dogs 15Hz-50KHz), which don't harm. but deter barking and aggressive dogs. 1 x Ultrasonic Dog Repeller. 30-foot range for effective bark prevention.
eBay
Bark Stopper Automatic Dog Barking Control Device Ultrasonic Dog Repeller Bark Stopper for Indoor and Outdoor Bark Stop Silencer
Aliexpress UK
1st bark --- 1.5 seconds beep. 3rd bark --- 5 seconds beep + 1 seconds vibration. 2nd bark --- 2.5 seconds beep. 4th bark --- 5 second beep + 1.5 seconds vibration. 5th bark --- 5 seconds beep + 2 seconds vibration.
eBay
Dog Bark Collar Pet Product Bark Stop Automatic Anti Bark Control Collar Electric No Shock Pet Dog Puppy Training Necklace
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. Digital Automatic Anti Barking Dog Pet Collar Smart Stop Bark Collar Waterproof.
eBay
Ultrasonic Bark Arrester Anti Bark Device Ultrasonic Dog Barking Control Stop Repeller Trainer Tool for Pets Training Supplies
Aliexpress UK