Color as shown Size: 5 x 3.5 x 4 cm Weight: 160 grams 【Safe and effective automatic bark control】 Our Bark Control Dog Collars automatically detect dog barking and dispense citronella spray to effectively stop loud barking and other unwanted behavior such as digging, chewing on furniture and fighting. is safer and more humane, no pain for dogs throughout the training. 【Smarter, no false triggering】Dog Citronella adopted bark detection chip the most advanced. only by your dog’s bark and ignores dog head shakes, barking from other dogs and other noises. No more false triggering of the bark collar, the training process becomes more efficient. 【Adjustable volume and sensitivity spray nozzles】É Although dogs have different barking frequencies and temperaments different, our dog bark collar offers different spray volumes and sensitivity levels. adjustable, you can choose the most suitable way to train your dogs. The main unit has a large capacity. Let it spray at least 30 times. filled with