Zolux Anti Barking Safety Collar for Dogs

Anti-bark collar helps treat excessive barking in large dogs weighing 15 kg

10 levels of gradual stimulation and 1 single vibration mode.
Warning System: Before any electrical stimulation, the collar will vibrate to warn the dog.
Barking detection by vocal cord vibrations and barking sound.
Excessive barking indicator to facilitate adaptation to the level of stimulation.
Water resistant.
Stainless steel.

Rechargeable batteries run for 2 hours.
How it works:
An internal microphone picks up the sound and the unit is automatically activated. The bark control collar starts the ultrasonic sound for 1 second as a warning upon the first barking. The second time, the collar emits the ultrasonic sound for 2 seconds. From the third time, the collar emits the ultrasonic sound for 3 seconds and gives a static shock for 2 to 3 seconds. The dog should stop barking. If the dog barks within 1 minute after the first static shock, the collar emits the ultrasonic sound for 3 seconds and 2-3 seconds static shock. If the dog stops barking, the collar resets to the lowest level and repeats the first 3 steps. The shock levels can be adjusted with the screwdriver included with the product.