This Dogtra 1900NCP collar is the perfect training tool for dogs of different sizes such as XL, L, and M. It uses a static/shock control method to help reinforce good behavior and discourage bad ones. This rechargeable model is from the trusted brand Dogtra and is ideal for pet owners who want a reliable and effective bark collar. Please note that this listing is for the collar only and does not include a charger. It belongs to the Bark Collars, Training & Obedience, Dog Supplies, and Pet Supplies categories. Purchase this Dogtra 1900NCP collar and train your furry friend with ease.