The Ultrasonic Bark Stop is a safe and effective training aid that uses powerful dog alarm ultrasound to tame your dog, stop barking and instantly control other unwanted behaviors such as biting, fighting, digging and barking. Harmless to people and pets - When the ultrasonic deterrent is activated, the sound will not affect people, but it is fully capable of attracting the attention of dogs. BUILT-IN LED FLASHLIGHT ATTENTION - The Ultrasonic Dog Training Anti-Bark Device emits an LED flashlight to attract the dog's attention and help train those dogs who respond better to visual training. You can use the LED light when walking your dog in the dark, or attract attention when it's away from you. STRONG ABS PLASTIC MATERIAL - The slim and powerful dog trainer does not bark device has a strong, impact resistant and lightweight ABS plastic shell, the wrist strap is made of durable nylon for easy grip and durability. EASY TO OPERATE DOG TRAINING EQUIPMENT - Handheld bark training equipment is designed for rigorous indoor/outdoor training routines of any dog breed. When it comes to dog bark control, ultrasonic bark control devices are one of the most popular methods. Using ultrasonic technology, these ultrasonic bark controls are a safe and effective training tool for large and small dogs. Behavioral problems in dogs are often misunderstood by dog owners. Maybe you're new to dog ownership or just want to help your dog with a challenging problem. We understand the expected behaviors dog owners have with their dogs and the time it takes to train them to behave well, especially in public, and deter bad behavior. A solid foundation of obedience training will help you prevent or better control these problems and bad habits: excessive barking, chewing, digging, chasing, jumping, biting, attacking. " Rated charging voltage: DC5V Rated charging current: 1A Battery capacity: 400mAh Product size: 10*5*3CM