Smart Anti Bark Device for Dogs Indoor/Outdoor 3 Levels Adjustable Rechargeable Pet Behavior Training Tool

Intelligent Detection: Automatically detects the dog's voice and once it stops barking, the ultrasonic transmitter will automatically stop the transmission. WIDE CONTROL RANGE - Up to 50ft control range for easy handling of various environments. Portable and easy to use: USB rechargeable design, charge for 5 hours for 30 days of use, lightweight and easy to carry. Suitable for all sizes and breeds of dogs: 4 levels of sensitivity to choose from, adjust the sensitivity to the most suitable setting according to the environment.