Ultrasonic Dog Barking Deterrent, Anti Barking Device with Strobe Flashlight, Handheld Ultrasonic Bark Stopper 3 Modes To Stop Getting: Normal Ultrasonic Mode can emit a soft ultrasonic sound to correct your dog's behavior, while Enhanced Ultrasonic Mode and Strobe Light can provide a stronger correction for recalcitrant barkers. You can choose the most appropriate mode to stop the bark according to the different levels of dog barking. Irregular Frequency & Owner-Friendly Design: This bark control device emits ultrasonic sound within the dog's hearing range. It is 6 times that of human hearing. It is the most humane way to train the dog as well as prevent their bad behaviors and habits without any harm to your dog's hearing and health as the sound frequency is between 25kHz and 30 kHz, also harmless to the human body. Moreover, if pressed over 10s, it will automatically stop to protect the dog from overstimulation. 16ft Control Range & Independent Switch Button: The maximum ultrasonic effective control distance of 16ft allows you to use this Dog Barking Deterrent Device to train your own dog or to drive away unfriendly dogs on the road. Besides, there is a unique switch button to prevent misoperation. Once pressing the button, the touch of any button is invalid, thus avoiding unnecessary interference and damage to your dogs. Type C Recharging: Anti barking device built-in large-capacity battery only needs 2 hours to be fully charged but works for 15-30 days. (depending on the using frequency). Equipped with a type C cable, Dog Barking Control Device can be easily charged through a PC, power bank, or power socket. Easy to Use & Portable Carry: The ergonomic shape design makes it comfortable to wear. The anti-barking device is lightweight and comes with a lanyard and LED light, making it an ideal choice for outdoor walks with your dog to maximize safety at night. Suitable for dogs aged 6 months to 8 years old and weighing more than 4.5 pounds.