Ultrasonic Anti Bark Device for DogsLove it 100 and agree that it's the best training tool ever used, or we will offer a full refund unconditionally (contact our seller support directly). We are confident that you will love this advanced ultrasonic bark deterrent: the sleek, compact design the excellent function, fast charging and battery life, and most importantly - it will help your dog to correct bad behaviours without any shock, frustration or pain!. UP TO 3 MONTHS LIFE - RAPIDLY CHARGES IN JUST 4 HOURS : More than the fastest, safest dog training method in the world - with 0 pain or damage to pets or people. This dog barking deterrent is your choice if you want to skip the hassle of keeping yet another 'thing' plugged in because it quickly charges in just 1 hour, and can be fully charged for 60-90 days when connected for 4 hours. BEST DOG BEHAVIOR TRAINING TOOL - 2.7X More Effective than the most expensive and effective dog behaviour training wands on the market, with 3 Tiered Procession to give you complete control 4x Chase-Stopping Sounds, 2x Bark Eliminating Sonic Waves, 1x PoliceBright Ultra-Deterrent Light, and even a flashlight for those late night walks. Stop Behaviours in Seconds within 50 feet - The anti barking device has been tested in many times, see the video uploaded in the anti-barking device section to see how this handheld stop barking device rapidly, effectively, painlessly changes every annoying, destructive, and insecure behaviour in 3 seconds. This is an ideal training tool for any dog between the ages of 6 months and 8 years who barks, chews, bites, chases, jumps up, digs or eats dangerous objects. 3x Ultrasonic Upgrade Dog Deterrent Device: Every Dog, Every Behaviour, Disappear! While only 10 of dogs are immune to our advanced 25kHZ dog barking control devices, we refused to stop at that effectiveness, so we added the undulating 20 to 30 kHZ 10 second ultrasonic boom to reach 100 effective. 100 Painless! It's 300 faster dog training than than a dog whistle to stop barking, dog clicker for training, bark box, bark collar, air horn for dogs or in person dog training program.