Safe and Comfortable, Train Your Dog Without Injury - A+ Trainer rechargeable anti bark collar with 3 modes Vibration/Sensitivity/Electric Shock gives stimulation to your dog to make it throw away these bad habits but does not hurt your pet. Effective Anti Bark, Away From Neighbors' Bend - A+ Trainer dog training collar with sensitive system to dog bark quickly regulates according to the setting of 7 levels according to your request, makes the dog learn what are the correct behaviors, no complaint from neighbors. Easy Operation, Durable Use - A+ Trainer automatic anti bark dog collar is easy to use, no remote control. You need to put it on your dog after adjusting the level. Fully charging the collar in 1 hour will provide 15 days of battery life, lasts a very long time.Adjustable Strap Fits All Size Dogs - The adjustable nylon strap is strong and durable enough to fit all small and large dogs; except that, the dog collar with the special design of reflective function is fashionable