Rechargeable anti-barking dog collar with vibration training mode, USB charging, lithium polymer battery, and ≤36V operating voltage.

This is a rechargeable anti-barking dog collar that includes a vibration training mode for pet barking control. It features a USB charging capability and is powered by a lithium polymer battery with an operating voltage of ≤36V.

Adjustable Size: these rechargeable bark collars are suitable for small, medium and large dogs; The dog collar neck circumference between 6 inches (15cm) and 22 inches (52cm), expanded length is about 22 inches (52cm), you can adjust the strap according to the size of your dogThree Modes: the dog bark collar is designed LED indicator display, red light means "shock" mode, green light means "beep and vibration" mode, red light and green light means "beep, vibration, shock" mode, each mode has 1-7 adjustable intensity levels, depending on your pet's behaviorAdjustable 7 Sensitivity Levels: this stop barking dog collar have 7 sensitivity levels, you can set the right sensitivity level for your dog in different environments, select a sensitivity from 1 to 7 by the power button to stop barking; Sensitivity setting suggestion: the dog is normal size, and the sensitivity is set to 4-5 files, and the sensitivity is set to 6-7 files for larger dogs