Bark Stop Collar / Pet Product /Dog Collar Description:Ø The product is voice-activated. At the 1st bark the product applies a short warning tone. If a 2nd bark occurs within 30 seconds a more intense tone is sounded along with a short mild shock. If your dog barks a 3rd time, both the tone and shock become more intense. After 30 seconds of quiet, the product automatically resets to the 1st tone only level of correction. When your dog forgets and bark again, the warning tone reminds your dog without immediately applying painful stimulus.Ø You can adjust the sensitivity of the item, if you want, in order to find the voice of your pet with the exact scope, this will not punish your dog for the other voices of restless.Ø For most dogs, it needs 7 to 14 days to take effect; for few dogs, it needs 4 to 6 weeks to take effect; for very few dogs, it needs longer time to take effect.Main Features:This technique is not only more humane, it's more effective compared to conventional shock collars.High-frequency sound waves and shock level to stop dog's barking automatically delivers sound and shock stimuli. Microprocessor controlled.You can use the LED test the Bark terminator, if the LED bright when your dog barking, then it is working. Effective fit dogs from 2 Kg to 60 KgWater resistant, rain and snow will not affect operation.(Only waterproof, But it cannot be immersed in the water)High quality nylon strap adjusts from 6" to 25"Package included1x Bark terminator 1x 6V (4LR44) battery1x Test light. (Clips to collar and lights up to tell you the shock action is operating)1x English Description