●{9 Adjustable Shock Intensities} Homcolorful dog bark collar features a customizable shock intensity with 9 levels of adjustment,providing you with a wider range of options. Say goodbye to the inconvenience of shock thats too strong or too weak. ●{5 Versatile Training Modes & 7 Sensitivity Levels} Homcolorful no bark collars for dog offer 5 distinct training modes to effectively address excessive barking,including sound,vibration, shock,sound & vibration and sound & vibration & shock, allowing you to choose the most suitable training method for your furry friend.It also boasts a sensitivity setting with 7 levels to ensure precise responsiveness. ●{Suitable for a Range of Dogs} Homcolorful dog training collar is designed to accommodate a wide range of dog sizes.It is suitable for dogs weighing between 15 lbs and 110 lbs,with neck circumferences ranging from 5 to 25.4 inches.Also,our anti-bark collar is equipped with two sets of electric prong of different lengths, making it suitable for various dogs. ●{Auto-Protection & Waterproof}After 7 consecutive usages, the dog shock trainer collar automatically enters a 75-second protection mode,ensuring the safety and well-being of your dog during training sessions.With an IPX7 waterproof rating,the collars receiver can safely operate for 30 minutes under 1 meter of water.This feature ensures the collars durability and functionality even in wet conditions. ●{User-Friendly Display & Long Battery Life} Homcolorful smart bark collar is equipped with a colorful screen that displays essential information including battery status.It takes only 2 hours to fully charge the collar and a single charge can last up to 15 days, providing convenience and reliability.