Features:
Can make static to restrain the dog's barking automatically.
The impulse static is safe and effictive.
The allowable bark degree is adjustable， you can adjust it according to needs.
Different levels of static stimulation to teach your pet.
Adjustable collar length fits different size of dogs， suitable for most of small and medium dogs.
Led signal light.
Low battery consumption.

Specifications:
Power supply: 2 * CR2032 Batteries (not include)
Item size: 6.2 * 3.5 * 2.6cm
Item weight: 33g
Package size: 22.2 * 11.5 * 4.5cm
Package weight: 116g

Package include:
1 * Anti-Bark collar
1 * Black collar straps
1 * Special screwdriver
2 * Screws