Paipaitek [Upgraded 2018 No Bark Collar - Best Rechargeable Anti-Barking Shock Control with 5 Levels Automatic Bark Collar for Small Medium Large Dogs Electronic Safe Stop Bark (6+lbs) Improved performance -- your dog's safe is our top priority.With 5 adjustable sensitivity levels, you can choose the most appropriate sensitivity based on the actual situation of your dog. The combination of warning sound and static shock trains your dog effectively and harmlessly Automatic mode -- the carefree protecting system allows this no bark collar to remind the keeper with flashing light and stop the training process if the dog continuously barks for over 30s, automatically preventing any negative effect to the dog without troubling the keeper High tech design and anti-interference -- lightweight receiver (33g) , unique anti-bark collar. This anti barking collar adopts the latest sound-detecting technology, which accurately distinguishes the dog's barking from other noises. Not easy to be falsely triggered by other sounds, avoiding unnecessary warning Rechargeable, no more paying for batteries -- rechargeable battery, lasting about 15 days to solve the issue of batteries replaced frequent Correct your pooch no matter the size -- the adjustable collar and raft of sensitivity settings mean the no bark collars can successfully correct dogs weighing anywhere from 6 to 120 pounds. You will also receive extra electrodes to be able to use the collar for short-haired and long-haired dogs