?IDEAL ULTRASONIC DOG BARK CONTROL?For puppies please use 25KHZ,for suitable for naughty dogsplease use 25 30KHZ variable frequency sound wave.Aimed at dog channels that won't disturb your cat.Can also be used on neighbour's dogs across thefence,away from annoying barking in the neighbourhood or on the road.This is anideal no bark and behaviour deterrent device.?Service?If you are troubled by product problems,please contact us as soon as possible to solve it for you,including return or exchange. ?ULTRASONIC DOG TRAINING AIDS?3 modes for stopping barking and dog training: ultrasonic,ultrasonic flash light,ultrasonic buzzer.Compared with the dog clicker and dog whistle can attract the dog's attention more, through the reward to train the dog to change all the bad behaviours. It works better with the training kit.PROFESSIONAL TIP The dog anti-barking device is not suitable for the following situations: aggressive dogs,noisy environment,hearing impaired dogs,more dogs together,dogs under 6 months or over 8 years old. ?UPGRADED CONFIGURATION,CONVENIENT TO USE?Bark buster equipped with a 1600 mAh USB rechargeable battery.2.5 hours to full,maximum standby time 180 days.The most effective distance is 10 23 feet.Equipped with a hand bowl with leash,convenient for walking your dog on the go.Anti-false lock button helps prevent false triggering,you can also carry it in your pocket.The included LED light (long press for 2 seconds to turn on) can be used for night lighting use. ?BETTER ALTERNATIVE TO BARK COLLAR?8 seconds ultrasound will turn off automatically,100 painless.No electric shock,no harm.The barking device for dogs effectively stops dogs from barking by emitting harsh waves that are annoying to dogs,peace sonic bark husher using a multiple combination of ultrasonic buzzer sound strobe light,which will not hurt your dog.Good replacement for bark box and collier anti aboiement. ?2024 MORE EFFECTIVE BARK GUARD?Based on the existing electric dog anti barking device situation,SUNFATT understands that most of the dogs have adapted to the ultrasonic wave of 25KHZ,so we added the upgraded 25-30KHZ variable frequency sound wave band and 3 times frequency Dog Barking Deterrent Devices,using the sound wave that only the animal can hear,to attract the attention of the dog,and effectively stop them from barking,chewing,biting,chg,jumping up,digging or eating dangerous objects and other bad behaviours. ?Peace Sonic bark Husher suitable for 99 of dogs? If it is not suitable for your dog because the ultrasonic frequency bands that dogs are accustomed to are different,Please let us know.