feature: Voice-activated automatic induction of dog barking. No need for manual operation, people can work normally without being at home, and it is convenient to use. Adjustable sensitivity. Adjust the appropriate sensitivity according to the sound of the dog barking. It is recommended to increase the sensitivity when you just use it, and the machine responds quickly. First warning and then current punishment, humanized correction. The dog barking machine will send out a prompt tone first. If you hear the prompt tone and stop barking, there will be no current penalty. If you ignore the prompt tone and keep barking, the machine will punish it after three reminders, so that the dog will understand that there will be a penalty for barking, so as not to avoid it. No longer barking, and gradually develop the habit of not barking. The current of the bark stopper can be tested by hand, which is safe and does not harm the dog. Rely on sudden stimulation to make the dog afraid, so as to realize that there will be punishment for barking, and achieve the purpose of correcting barking. Automatic sleep power-off protection. When there is more electricity and more barking, the dog will automatically power off and sleep for 1 minute after the dog's barking triggers the machine to discharge 5 times in a row, to protect the dog, and automatically restart after 1 minute, which is convenient and safe. Product parameters: size: about 6. 2cm*4. 4cm*3. 6cmWeight: about 34gBattery: 220mAhVoltage: 3. 7VPower: 0.814Wh SKUCYLUO2021091051