Specifications:

• Dog Bark Deterrent Devices:The anti barking device has a built-in 1500 mAh rechargeable battery, which can be charged for 5 hours and can be used for 30 days, simple to operate and easy to use, it's a friendly dog barking device for your furry friend {Note: This product needs to be used continuously for 7-14 days to help your dog adapt well to it! Please charge the device before use}
• Safe and Effective for Dog and Human:Our Dog Barking Control Device is not only safe for your furry friend but also highly effective in reducing excessive barking. It emits a gentle ultrasonic sound that is harmless to dogs but effectively discourages them from barking excessively
• Up to 50Ft Range Dog Barking Stopper:With a range of up to 50 feet, our Dog Barking Control Device covers a wide area, making it suitable for both indoor and outdoor use. Whether you're at home or out in the yard, this device provides reliable bark control.

Anti Barking Device for Dogs, Dog Bark Deterrent Devices with 3 Modes, Ultrasonic Dog Bark Control Devices 50Ft Range Outdoor and Indoor, Waterproof Dogs Barking Silencer Safe for Human and Dogs