CoPedvic Dog Bark Collar 100% Waterproof Anti Bark Collar Dogs, 10-100 lb, Black Pack 5 adjustable levels of correction intensity. We customized 5 Adjustable levels of correction intensity for CoPedvic bark collar. From level 1 to level 5, each correction level is vibration plus harmless static correction (The intensity of static will increase as correction level goes up). you can choose the appropriate and effective correction level for your dog as required. We would recommend you to start from level 1 at the first time of using this product. Advanced detecting sensor for precise bark control. Using cutting-edge detecting sensor, CoPedvic barking control collar can solely detect barking signal (vibration) from your dogs throat. Unlike other bark collars using sound sensor, vibration sensor is much more accurate. It virtually eliminates false corrections caused by Paw scratching or scraping of external surfaces, or other noises like the barks of nearby dogs. No worry for the triggering of false correction. 4 adjustable levels of sensitivity to barking. CoPedvic Dog bark collar features 4 adjustable levels of sensitivity to barking. You can adjust the sensitivity level as needed. For example, the level 1 sensitivity could work on a large size dog, but it might be not sensitive enough to a small size dog. So with our training collar, barking control will be much more efficient. Better & responsive barking control for your dog. 60 seconds of auto-protection mode. CoPedvic bark shock collar has built in a security auto-protection mechanism. Once the shock bark collar has been activated for 5 times, it would enter a 60 seconds sleep mode automatically to protect your dog from excessive static correction. For positive barking control training, always remember to REWARD your dogs if he/she stop barking after the stimulation correction. 100% quality Guaranteed & 2 years warranty. Every CoPedvic bark collar will go trough a strict quality test process before sending out, as we promised to bring the best quality anti bark collar to our customer. From the day of purchase of CoPedvic bark collar, we offer 2 years warranty and lifetime technical support to our customer. Every customers right is fully guaranteed during the warranty period.