Pet Dog AntiBarking USB Electric Ultrasonic Dogs Stop Barking Vibration Anti Bark Collar Automatic Collar Dog Training Collars

Features: 1. 7-level sensitivity adjustment: With a 7-level sensitivity adjustment, it is an efficient behavior modification tool that will help you train your dog to bark less. 2. Rechargeable: It can be easily charged with the USB cable. It is convenient for charging. 3. Comfortable design: It is smaller, lighter and more comfortable for dogs. It will not jurt your dog. 4. Compatible: Whether your dog is small or large, our adjustable dog bark collar can fit the bill perfectly. 5. Waterproof: The necklace is waterproof, don’t worry about wearing it even in rainy days.     Description: This bark stopper dog training device is durable, it is precise and convenient to control, which helps to train the dog well.     Specifications: Material: Plastic + Nylon Size: 6.7 * 4 * 3cm Battery: Built-in 300MA lithium battery Charging method: USB charging Adjustable diameter range: 6-36cm Voltage: 5V   Package Included: 1 pc * Dog Bark Stopper Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.